William Thwaites
was the maternal grandfather of GRESHAM CLAPHAM, Esq. and the 10th great-grandfather of ELIZABETH ANN JOHNSON (1875-1948), mother of WILLIAM HENRY FLUEN (1906-1969).
William Thwaites' descent is not quite clear. According to the Ingleby Pedigree William Thwaites shall have been 'of Lund', which indicates that he was perhaps an offspring of EDMUND THWAITES, ESQ., Lord of the Manor of Lund.
EDMUND THWAITES, ESQ. was a Commissioner of the Peace for the East Riding from 1483-1498, the executor to Henry, Earl of Northumberland in 1485, and a commissioner to Henry VII at an inquisition taken at York Castle. He desired on his death his body to be buried in the 'Chappell of Our Lady', which he had newly built on the north side of 'All Saints Church'. Tomb effigies of Edmund are either side of the altar. 
Will of Edmund Thwaites, Esq. [Reg. Test. iii. 319 J.]
"May 21, 1500. In nomine Patris, et Filii, et Spiritus Sancti, Amen. I Edmund Thwaites* of Lond negh Watton, esquier. I bequeth my saul to Almyghty God, besechyng y e moste
blessed Virgyn our Lady Saynct Mare, moder of our Lord Jhesu Crist, and all y* holy Sainctes in heven to pray for my said saul, y* it shall pleas Almighty God of His aboundant grace to receave it to His mercy. Also I bequeth my body to be beried in y e chirch of Lond, in a chapell of our Lady which I have newly beldid, of y^ north syde of y c said chirch.
> I bequeth to xiij^ beidmen xiij whyt gowns, to hold xiij torches y* day of my beryall.
> I bequeth vij pond wex to be in v serges to burn over me y e day of my sepultur and my viij day.
> To every prest y 8 * shalbe at my Dirige and Mass day of my berial vj d.
> To every parish clerk in surples iij d.
> To every person y* at y* day wil take almous, to help my saul w* y r prayer, j <L
> To y* hign altar of y e chirch of Lond, for myn offerynges and tithez forgettyn, xx s.
> To y e high altar of y e chirch of Hunderdale vs. To the Prior and covent of Kirkham, to beldyng y r wher* ruf, x marc ; and, as sone as yei beeyn to beld, y money shalbe delyvered.
> To every of iiij orders of Freers in York xiij s. iiij d.
> To every place of Freers in Beverley and Hull x s.
> To the Priores and covent of Watton xl s.
> To v* Prioress and covent of Nonburnom vj s. viij d.
> I bequeth iiij li. yerly, to be given for vij yeres by myn executors of sich goodes as late was Henry my sone's, and of my goodes and th' executors of y* said Henry, for one prest to pray in y e chirch of Lond for y* saul of Henry my son, and oder my childer saulez, my saul, and all Cristen saulles.
> Also I bequeth iiij li. yerly for vij yers to com, to be gyven by myn executours, to a prest to pray in y e said chirch for my saul, and of saul of Jhenet my wife, my auncetours' saulez, and all Cristyn saulez.
> To Edmund, my son, plate to y c valour of cli., and in money coyned, c marcs. To y c .said Edmund xlli. in money coyned, to dispose secretly in sich werkes as I shewyd to hym before William Babthorp. To y c said Edmund j fedder bed, j bolster, ij coverlettes, ij blankettes, j par shetes of iij webbes, j coveryng to a bed of florez, and on oder of ymagery.
> To my doghter, Alionor, a goblet gilted, a standyng pece covered, half gilt, a flat pece covered gilted, a coveryng of a bed of flowrez, and, in money, xl s.
> To my son, John Sainct Quyntyn, to his costes, c s.
> To John LangdaJe xx marcs.
> To Henry, my cosyn and heire, a coveryng of a bed, which is as good of o syd as y e oder, etc. To every of his sisters, toward y* mariagez, xl marcs.
> I will y* Sir John Noblee, and oder prestes after him, to pray for my saul, myn auncetors' and childer sanies, and y 6 sanies of sich as I shal apoynt, in the chapell aforsaid, accordyng to a composicion which shalbe maid by me y'fore, or by myn executours, shal take — to do trnely and diligently sich prayers and observaunce as shalbe in y* same composicion and ordenaunce, all rentes and fermez of all y* landes and tenementes y* I had in Middelton negh Lond, Fulsutton, and Birdsall ; and of a mese, ij oxganges of land, a closse called Moscroft, and of one orcherd in Lond.
> To every of my servanntes y* serves me as yoman x s., besydes y* waig.
> To every servannt at husbandry vj s. viij <L To every man-child in lyke labour iij s. iiij d. Tx> y* shephird vj s. viij d.
> To every woman servannt vj s. viij d.
> To a prest, to syng iii quarters of a yere for my saull, and all y* sanies yat I have had profiet of, iij li.
> To William Richerdson, my bedeman, v s. yerely doryng vj yerez, and resonable sustynaunce of mete and drynk, to pray for me.
> To y e prisoners in y* castil of York ij s. for every quarter in j* yere doryng vij yerez.
> To y* colleg of Lowthorp v marcs.
> To Mountgrace x marcs.
> To y* Priorisse of Nonmonkton v marcs.
> To y 6 monastery of York xx s.
> To y mynstre of Beverley xiij s. iiij d.
> To Suthwell x s. To y* monastery of Ripon x s.
> To y* Prioress of Thikhed xx s.
> To every masyndew and spitil-hous in Beverley xij <L
> I will y* my feffez of y 6 maner of Lond, Garwardby, Sandhoton and Firthby, etc, suffer th* executors of yis my testament to receave y* revenews of y 6 said manors, landes, etc., for vij yerez, for y* performannce of yis my will, and oder wise to dispose for y* wele of my saul.
> I will y* all ye manors, etc., aforsaid, be tailed to my cosyn Henry Thwaites, and his heires male; and, in defaut, to remane to my son Edmund Thwaites and his heirs male — and, in defaut, to reman to y* heires male of my doghtours Elizabeth Langdale, Elionor Sainctquyntyn and Margaret Malere ; and, in defaut, to y* heirez made of John Thwaites, Elyn Thwaites, and Lore Thwaites ; and, in defaut, to be soiled and disposed for y e wele of my saul.
> I will y* my executours sufficiently repanll and uphold y 6 said manors, etc, duryng y c said yeres ; and y* yei shall kepe my hows at Lond, and give every servannt lyke waige as I cave yeim, doryng a hole yere.
> Also I bequeth to my son Edmund, John Sainct- Juyntyn, Elinour my doghter his wyf, John Noblee preste, whom ordane myn executors, all y* residew of my goodes not bequeth nor given, in sich werkes of mercy as yei shall thynk most profit for my sauL
Witnessez William Babthorp and John Langdale."
INQUISITION POST MORTEM: Edmund Thwaites, 17 Mar 1502
"Long before his decease, to wit 2 June 1500, by certain indentures between him and one Robert Constable, serjeant at law, it was agreed between them inter alia, that, before Midsummer then next, Henry Thwaytes, his cousin and heir apparent, should take to wife Agnes daughter of the said Robert, and if she died before or after espousals and before consummation, the said Henry should take Joan, Robert's other daughter ... his feoffees, within six weeks after the said Henry Thwaytes should come to the age of 20 years, should make estate [thereof] to him and the said Agnes, or the said Joan, his wife, and that the said Robert, immediately after such marriage, should take all the issues and profits thereof until the said Henry, the cousin, came to the age of 20 years, with remainder in default to Edmund Thwaytes, his son, and the heirs male of his body (All Saints in Lund)
that they should make sufficient estate of lands whereof they were then seised of the yearly value of eight marks to Ellen late the wife of Henry Thwaytes, his son, for her life. He was seised in his demesne or of free tenement, the day he died, by the curtesy, after the death of Joan his wife ..., which upon his death descended to the said Henry as cousin and heir of the said Joan, viz., son of Henry, her son. He died 15 June last. The said Henry Thwaytes is his cousin and heir, viz., son of Henry son of the Edmund and Joan, and was aged 14 and more on Midsummer eve last past."
[1 Aug 1501 - 9 May 1502], Westminster: " Grant to Beatrice, Lady Greystok, widow of Robert Constable, serjeant-at-law, of the lands of Edmund Thwaytes and Joan his wife, both deceased, during the minority of Henry, kinsman and heir of the said Edmund and Joan; to wit, son of Henry son of the said Edmund and Joan; and of the marriage of the said heir, though already married; and pardon to the said Beatrice for the abduction of the said Henry and the marrying him to Agnes daughter of the said Robert and Beatrice. Pardon to Henry Thwaytes, kinsman and heir of Edmund Thwaytes, deceased, to wit son of Henry son of the said Edmund, for marrying without licence Agnes daughter of Robert Constable, late serjeant-at-law, and Beatrice his wife."
According to the last will and Inquisition post mortem of Edmund Thwaites, Esq. Henry Thwaites was aged 14 in the year the testator died viz. Henry Thwaites was born c. 1487. He shall have been not only Edmund's Thwaites' cousin, but also his grandson by his predeceased son Henry Thwaites married to Ellen Eure, daughter of Robert Eure (died 03. Feb 1480) and Ellen Ingleby, who was married secondly to Sir John Constable of Halsham, knight (will prob. 16 Jan. 1489).
This HENRY THWAITES married at first Agnes Constable and secondly ANNE SAVILE, but leaving no issue by her.
NOTE: "Frances Thwayts, daughter and heir of Henry Thwayts, knight, by Richard Gresham, her guardian. vs. William Thwayts and Anne, his wife, executrix and late the wife of the said Sir Henry.: Profits of the said manors and one-third of the manor of Breedon. (York, Leicester. C 1/582/20a)"
SIR HENRY THWAITES, knight, made his will 30. Jun 1520, which was proved 02. Aug 1520. He was buried in Lund, in the chancel of 'All Saints' leaving only two infant daughters by his first wife. "June 30, 1520 I, Sir Herry Thwaites, of Lounde, knyght. To be buried in the church of Alhalowes of Lound, in the chauncell where Agnes my late wiff is buried. My best beest, aftir the church, for my mortuarie. To the buylding and upholding of the same church xx s. To the vicar for tithes, oblacions, & other dueties by me necligently w t hold.en, w t drawen, or forgoten, vj s. viij d. To every Ordour of the iiij Ordours of Freres of Beverley vj s. viij d., to pray for my saule. To every church of iiij moiler churches w t yne Yorkeshire vj s. viij d . Unto the nonnes of Watton vj s. viij d., to pray for my saule. To the house of Wartre vj s. viij d. To Anne, my wiff, my cheyne of gold. To Frauncys, my doghtour, one device of golde w t v diamondes and dyverse perles in it. To Kateryne, my doghtour, one litill tablett of golde wt relickes, crisom lases, &, also, my crucifix of golde. To Elyn Killyngale, f my sustour, xx nobles. To Kateryne Povy xl s. To Jane Laneastre xl s. To Isabell Chambirlene xxvj s. viij d. To Sir John Noble preste xl s. To Davy, my shepard, iij li. vj s. viij d. To an hable preste, to syng & say Masses daily, when he may lawfully be disposed, w t yne the chauntery in the church of Lunde, by the space of vij yeres next ensuving aftir my deth, for my saule, the saule of Agnes late my wiff, the saules of my fader & moder, & all myn auncestres, iiij li. xiij s. iiij d. yerely. To every householder w t yn the towne of Lunde xij d., to praie for my saule. I will that at the daie of my buriall xiij poor men shall holde in their handes xiij torches burnyng aboute my hers duryng all the tyme of my Dirige & Masse of Requiem songen, unto whome I bequeth xiij blak gownes w t xiij blak hoodes. I will that xij li. wax et di. be made in xiij serges, & the same shalbe holden w t xiij childryne, havyng on theyme their rotchitte ahoute the saide herse the daie of my buriall, duryng the said e tyme, w t myne armes therupon . I will that every poer man & woman & childe being there have j d., to praye for my saule. To my cousyn, Sir John Constable knyght, my best gowne. To myne uncle, Peers Bigott, my blak, trotting gelding w t a white fote. My feoffees Sir John Constable, Sir Marmaduke Constable, Sir Water Calverley knyghtes, Peres Bigott, Rauff Bigott, Henry Savile, esquiers, of landes, etc., w t yne the countie & citie of Yorke, the Bushoprick of Duresme, & the countie of Lecestre, to stand seised of them to the use of me & my lawfull heres, & then to my right heres, & they to bryng up my ij doughtour s to they come to full age. James Sandall, my servaunte, xxvj s. viij d. Thomas Covell xx s. John Vincent xiij s. iiij d. William Pereson xiij s . iiij d. John Tipping xx s. I will that Philipp Gibson, my servaunte, have, terme of his Tiff, the belywik of Lunde w t xxvj s. viij d. fee. My wating servauntes to have the fees standing for their service doone & to be done, for terme of their lyves. The residue to Anne, my wiff, & Frauncys & Kateryne, my doghtours. My wiff, Sir Marmaduke Constable knyth & Roger Wilberfosse gen. Ex"; to each of theyme x mare Pr. 2 Aug. 1520, adm. exr°"
Frances Thwaites, the elder daughter, seems to have inherited her sister's share before 1528 or 1538. Because her father left no male issue, Edmond Thwaites' grandsons by Margaret Thwaites married to Sir John Mallory of Studley and Hutton Conyers and Eleanor Thwaites married to John St. Quintin tried to challenge the will of Henry Thwaites versus his widow Anne (Savile) Thwaites. "William Malery of Studley, and William Seynt Quyntyne, esquires, grandsons of Edmund Thwaytes. vs. Dame Anne, executrix and late the wife of Henry Thyawtes,
(Sand Hutton Hall) son of the said Edmund.: Detention of deeds relating to the manors of Lund, Garwarby, alias Gurwoldby [Garrowby in Kirby Underdale], Sand Hutton [in Bossall], Aike [in Lockington], Eske [in Leven], Forby (Forthby), and Charleton." [C 1/540/41] But Lund remained seemingly in Frances Thwaites' family, because her daughter, Elizabeth Gresham, who married Sir Henry Neville, left issue, and the Nevilles held Lund 1598-1606.
In summary it had been rather that WILLIAM THWAITES was only associated with Lund through his wife ANNE SAVILE having been the widow of SIR HENRY THWAITES of Lund. Her mother, ELIZABETH PASTON, refers in her will proved
12. Jan. 1541-2 to her Thwaites grandchildren she had by her daughter and William Thwaites:
(1) Henry Thwaites
(2) Elizabeth Thwaites married to Richard Lacy
(3) Isabel Thwaites
(4) William Thwaites
(5) KATHERINE THWAITES married to George Clapham of Beamsley, Esq.; both were the parents of GRESHAM CLAPHAM, Esq.
NOTE: ELIZABETH PASTON was the daughter of William Paston (1436 – 1496) and Anne Beaufort, third daughter of EDMUND BEAUFORT, 2nd Duke of Somerset.
In 1557 WILLIAM THWAITES' is said to have made his will refering to Marmaduke Thwaites of Little Smeaton as 'his brother'. Provided that it meets the truth it is pretty certain, then that he was a grandson of THOMAS THWAITES OF DENTON and ALICE DE LA HAY.
NOTE: York Corporation Records [Oct. 6, 12th Hen. VI. (1433-4)] "Indenture betwixt Mr. Robert del Hay and Johannet that was the wyff of Thomas del Hay, of th'one parte, and John Thwaites on th'other parte, wittnesseth that Thomas, son and heire apparant of the said John, shall marry Alyce dau. of the said Johannet."
A detention of deeds relating to the manor of Smeaton records a legal dispute between Marmaduke Thwaites, grandson of Thomas Thwaites vs. William Fairfax and Isabel, his wife, great-granddaughter and heir of the said Thomas (Source: York. C 1/407/29).
NOTE: According to a pedigree made by the English antiquary Roger Dodsworth (1585-1684) John Thwaites, son and heir of Thomas Thwaites of Denton and Alice de la Hay, had a son Thomas, who married Emma, daughter and co-heiress of Nicholas Midelton, by whom he had Thomas and John Thwaites, and Isabella, heiress of her brother, who married Sir William Fairfax, knight, of Steeton.
John William Walker again assigned in his Yorkshire Pedigrees that Marmaduke Thwaites of Little Smeaton shall have been a son of Henry Thwaites and Margaret Emerson, which is getting supported by several
(Thwaites of Denton. Argent a fesse sable between three fleurs de lis gules with three bezantes on the fesse.) legal settlements and disputes. Both would have been parents of WILLIAM THWAITES, too if he was indeed Marmaduke Thwaites' brother.
On 20. Jan. 1484, a messuage, 100 acres of meadow and 400 acres pasture lands "in Parua Smeton in the parish of Byrtby" were settled on Alice (de la Hay) Thwaites with remainders to her sons John, Henry and Thomas among others. The manor was demised to her son Henry Thwaites for life. [Feet of Fines, CP 25/1/281/166, no. 19].
"There was a suit in the Court of York in 1490-93 about this legacy [CP.F.301: T&C no. 96]: Isabella Thwaites alias Hastyngs vs. Henry Thwaites, her younger brother. Henry Thwaites brought the following witnesses: John Eleson of Selby, set. 60, was in a certain chapel called " ye parish church of Selby," with Alice Thwaites, when she gave a charter to Henry her son, giving him certain lands. Roger Vincent of Mickle Smeaton, set. 80, and Hen. Stork of Hemingbro', say the same. William Thwaites of Little Smeaton, set 31, was there also, and says the lands were the manor of Little Smeaton, and that he rode with his brother, at his mother's desire, to give him seisin. John Clarvaux, of Smeaton, says the same. On the other hand, John Garnet, rector of St. M. Castlegate, York, and others, say that they were in the house of Alice Thwaites in Water-lane, York, and heard her promise her daughter Isabel £40 towards her marriage, to be paid out of Little Smeaton within four years after her decease. A decree was made in favour of the lady." (St Peter of Smeton)
"In 1525 Henry Thwaites' eldest son, Marmaduke Thwaites was in possession of Little Smeaton; he was still living in 1539. His daughter Dorothy married Thomas Grimston, and Little Smeaton from this time followed the descent of Birkby."
The last will of Alice (de la Hay) Thwaites dated 11 March 1485/6, proved 16 March 1485/6 names her children she had to Thomas Thwaites, esq. of Denton:
(1) Jane Thwaites married to _ Stafford being parents of Umfray Stafford (b 1480)
(2) John Thwaites of Hardyngham co. Norfolk and Denton, Thwaites, Ackworth co. Yorkshre, Esq. married to Anne Knyvett and Agnes (Appleyard?); will made on 7 Jan. 1503/4, and proved 07. May 1507. He was William Knyvett's servant (during the 1480s and 1490s), acquired the manor of Hardingham and other lands in Norfolk to add to lands he inherited, about 1495, from his father.
(3) HENRY THWAITES and MARGARET EMERSON having been the parents of Marmaduke Thwaites of Little Smeaton, Esq. and WILLIAM THWAITES married to ANNE SAVILE
(4) Jenkyn Thwaites
(5) Thomas Thwaites
(6) William Thwaites born c. 1459 as he was age 31 in 1490 (see above)
(7) Isabel Thwaites married Robert Hastings, of Elsing, Norfolk
ALICE DE LA HAY was one of five daughters and co-heirs of Thomas de la Hay of Spaldington, hence it was that she found a resting place "neigh my saide husband, Thomas Thwaites, lyeing in the southe ile within the Monastery of Segut German of Selby." She had taken the vow of Chastity after her husband's death.
The 'De la Hays' were an ancient family at Spaldington and terminated in the five daughters and co-heirs of Sir Thomas de la Hay, who calls hisself in his will dated 01. July 1426 "son of Peter de la Hay of Spaldyngton" and directs his body to be buried in the conventual church of Ellerton near Elizabeth his mother.
His daughters were according to 'Testamenta eboracensia or wills registered at York':
(1) Isabell de la Hay married to John Vavasour, a younger son of Sir Henry of Hazlewood and Margaret Skipwith
(2) Joan de la Hay married to Christopher Hidyard
NOTE: Some sources are giving Catherine de la Hay married to Robert Hildyard, when he "was underage". On 21. Apr 1434 his mother shall have settled lands on him and his wife, indicating he was then of age.
(3) ALICE DE LA HAY married to THOMAS THWAITES, ESQ. OF DENTON (Selby Abbey)
(4) Elizabeth de la Hay married to John Knight of South Duffield
(5) Dorothy de la Hay, the youngest, became a nun in the Monastery of Swyne
(Denton Hall, c. 1800; the current hall dates to 1778, which was burnt down twice before through the (alleged) carelessness of servants, in 1734 and once rebuilt, again in 1743.)
The surname Thwaites is an English surname, but one of pre 7th century Norse-Viking origins. It may be either topographical or locational, and is derived from the word thveit, meaning a clearing or farm. As a topographical surname, Thwaite(s) denotes residence in or by such a place whilst as a locational surname it originates from any one of the various places called Thwaite, found in several parts of Northern England and East Anglia to the south. The surname development from ancient times, but the first recorded spelling of the family name is shown to be that of Ralph del Thweit. This was dated 1206, in the Pipe Rolls of Norfolk, during the reign of King John of England, 1199 – 1216. Throughout the centuries, surnames in every country have continued to “develop” often leading to astonishing variants of the original spelling.
The THWAITES FAMILY OF DENTON, had been long resident in this part of Yorkshire. They were originally lardiners to William the Conqueror, an office which continued hereditary in the family for many generations afterwards, and of whom some account is given in Drake's Eboracum (1736). Thwaites in the parish of Keighley was anciently their property, which afterwards came to the Fairfaxes. In 1316 John de Thwaites was one of the four joint lords of the several manors of Keighley.
THOMAS THWAITES , ESQ. OF DENTON was according to a pedigree made by Roger Dodsworth the son and heir of JOHN THWAITES OF LOFTHOUSE, whose wife JANE THORNTON was a great heiress. "5 Apr 3 Henry V [1415/16], I Robert Thornton, of Davygate, doth give and grant to John Thwaits and Joan his wife, my daughter, all my lands in the parish of Leake, and in the town of Skelton in the Forest, etc."
JANE THORNTON was the daughter of ROBERT THORNTON (died 1425) seised of 'the manor' of Davygate, called the prison of the larder, and rents in Bustardthorpe and Hessle. He continued to keep the prison, but it was then ruinous and worth nothing. He also drew his daily wage from the citizens of York, and enjoyed vert, venison, and hunting rights in Galtres. The 
property descended to Joan his daughter and her husband John Thwaites and from them to the Fairfax family by the marriage (ante 1519) of Isabel Thwaites to Sir William Fairfax.
ROBERT THORNTON was the son of John de Thornton and Alice Leeke. Alice Leeke was herself daughter and sole heir of Ralph Leeke, by Margaret his wife, eldest: daughter of Philip Lardiner, immediate descendant of David, called Lardinarius to the Conqueror, and lord of Davy Hall at York. Originally the family exercised by inheritance the function of stocking the king's larder in York with both game and domestic animals, and kindred rights and privileges which may have been implicit in that function or have subsequently accrued to it. In 1226-8 the reward for this serjeanty is defined as a plot of ground (unam terram) in York, and the value of the serjeanty is expressed as 5s. Presumably this plot was Davy Hall, which was to become the prison of the larder. The prison seems to have been a royal building, repaired in the shrievalty of Geoffrey de Neville (1216-22) out of the king's revenues and with timber from the forest.
JOHN THWAITES was married twice.
I. to JANE THORNTON:
(1) THOMAS THWAITES, ESQ. OF DENTON married to ALICE DE LA HAY
(2) Henry Thwaites of Lund, father of the EDMUND THWAITES OF LUND above. He made his will 31. Mar 1478 desiring to be buried in the church of All Saints in Lund.
(3) Elizabeth Thwaites married Edward Brockett in 1450; the marriage brought Edward half of Steeton, which John Thwaites gave as a marriage dowry with his daughter, thereby making an alliance with the leading local family. In return the groom's family guaranteed the bride a juncture, an annuity in case of her widowhood, as mentioned in Edward's will.
II. to Isabel Ryther:
(4) Mathilda Thwaites married to John Middleton of Stockeld; both were the grandparents of SIR WILLIAM MIDDLETON, High Sheriff of York in 1529.
JOHN THWAITES OF LOFTHOUSE AND DENTON was a lawyer of considerable repute temp. Henry VI, who was legal adviser to Thomas, Lord Clifford, when a minor and patron of Bolton Priory. His name appears in the Compotus for 1447 as first counsellor to that lord Sir Barnard Brocas, who married Agnes Vavasour, and from whom she was divorced, but had issue. Sir Barnard Brocas, who was attainted and executed in 1399, was lord of Denton. At about the time, when his mother died, William Brocas, grandson of Agnes Vavasour, made over his estate at Denton, by deed of feofment, to William Gascoigne, JOHN THWAITES, and others, from whom John Vavasour of Weston is stated to have recovered the same. Jakub's feudal aides' records for 1428 that William Gascoigne (as feoffee) and John Thwaites held Denton and Ulsyngton (surely Wolsington).
By will dated 22. Jan 1461-2, and proved Oct 1469 he desired to be buried in the church of Harewood leaving the residue to his co-executors, one being his second wife Isabelle, sister of Sir William Ryther of Harewood Castle, knight and otherwise mentioning only their unmarried daughter AliceThwaites, who became the wife of Sir Thomas Gower of Stittenham, knighted by the Duke of Gloucester in Scotland 24. July 1482.
NOTE: In 10 Hen VI (1431/32) John Thwaites enfeoffed (?) Sir William Gascoigne with 'my manor of Denton', but John Thwaites and his wife Isabel [Ryther] were regranted Denton with a new entail, first to their [future] male heirs, then to John's son Thomas and his male heirs, then the male heirs of John's daughter Matilda married to John Middleton of Stockeld, and then the right heirs of John. This was likely associated with John's marriage to Isabel Ryther. John Thwaites again granted Denton then to his son Thomas, and Thomas' wife Alicia dau of Thomas del Hay in 37 Hen VI (1468/69). By this it is clear that Thwaites had no male issue by his second wife, and Thomas m. Alicia de la Haye was the heir of Denton. Mathilda (Maud) Thwaites was perhaps the eldest daughter by his second wife, Isabel Ryther.