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William de Percy

Male

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  • Name William de Percy
    Birth of Topcliffe, Yorkshire, England Find all individuals with events at this location 
    Gender Male
    Person ID I7349  Petersen-de Lanskoy
    Last Modified 21 Jun 2026

    Father Alan de Percy,   b. of Topcliffe, Yorkshire, England Find all individuals with events at this location
    Mother Emma de Gant,   b. of Folkingham, Lincolnshire, England Find all individuals with events at this location
    Family ID F3294  Group Sheet  |  Family Chart

    Family Alice de Tonbridge,   b. of Clare, Suffolk, England Find all individuals with events at this location
    Marriage Bef 1136 
    Family ID F3005  Group Sheet  |  Family Chart
    Last Modified 30 Jun 2026

  • Notes 
    • RESEARCH_NOTES:
      1. “Royal Ancestry: A Study in Colonial & Medieval Families,” Douglas Richardson (2013):
      “WILLIAM DE PERCY, of Topcliffe, Leconfield, and Nafferton, Yorkshire, son and heir. He married (1st) before 1136 ALICE (or ALIZA, ADELIDA, ADELIDIS) DE TONBRIDGE, daughter of Gilbert Fitz Richard (also styled de Clare and de Tonbridge), of Clare, Suffolk, Tonbridge, Kent, etc., by Alice, daughter of Hugues, seigneur of Clermont, Breuil-le-Vert, Creil, Luzarches, and Mouchy-Saint-Elou [see CLARE 2 for her ancestry]. They had one son, Alan, and two daughters, Maud (wife of William, 3rd Earl of Warwick) and Agnes. By an unknown mistress (or mistresses), he also had three illegitimate sons, William, Walter, and Henry, and two illegitimate daughter, Alice (mistress of Henry du Puiset and later wife of Richard de Moreville) and Emma (wife of William Malebisse). He was present at the Court of King Stephen at Easter 1136. He fought for King Stephen at the Battle of the Standard in 1138. He founded Sallay (or Sawley) Abbey in 1148. His wife, Alice, was living in 1148. He witnessed charters of King Henry II to Nostell Priory before July 1157. He married (2nd) in 1164-66 SIBYL DE VALOINES, widow of Robert de Roos, of Helmsley, Yorkshire (died 1162 or 1163), and daughter of Thebaud de Valoines, of Perham. He was probably the founder of Stainfield Priory, Lincolnshire. He was a benefactor of Byland and Fountains Abbeys and Markby and Shde Priories. He gave the church of Topcliffe, Yorkshire to St. Peter's York for the work of repair and building. WILLIAM DE PERCY was living in the year ending at Michaelmas 1170, and almost certainly in that ending at Michaelmas 1175, when Helte de Boisdele owed 100s. in Lincolnshire for the light of 2 knights' fees which he claimed against him. At his death, he was buried at Fountains Abbey. His widow, Sibyl, married (3rd) about 1182 RALPH D'AUBENEY, of Aubourn and Binbrook, Lincolnshire. RALPH D'AUBENEY died before Michaelmas 1192. His widow, Sibyl, was living in 1212. At her death, she was buried at Nun Appleton Priory, Yorkshire.
      Memoirs illustrative of the Hist. & Antiqs. of the County & City of York (1848): 49-54. Tate Hist. of the Borough, Castle & Barony of Alnwick (1866): 412-414 (Percy ped.). Round Feudal England (1895): 468-479 (author identifies Alice de Tonbridge, wife of William de Percy, as a daughter of Gilbert Fitz Richard (or de Tonbridge) [died 1117].). Clay Extinct & Dormant Peerages (1913): 158-167 (sub Percy). C.P. 10 (1945): 440-445 (sub Percy). Paget (1957) 130:4, 473:1. Sanders English Baronies (1960): 148. Clay Early Yorkshire Charters 11 (1963): 3-5, 24-45, 54-56, 74, 81-82. Johns Noblewomen, Aristocracy & Power in the 12th Cent. (2003): 71.”

      2. “Royal Ancestry: A Study in Colonial & Medieval Families,” Douglas Richardson (2013):
      “ALAN DE PERCY, of Topcliffe, Yorkshire, son and heir. He married EMMA DE GANT (or GAUNT), daughter of Gilbert de Gant, of Folkingham, Lincolnshire, by Alice, daughter of Hugues, seigneur of Montfort-sur-Risle [see GANT 1 for ancestry]. Her maritagium included land in Wold Newton, Ganton, and Staxton, and presumably also in Horkstow, Lincolnshire. They had six sons, William, Walter, Geoffrey, Henry, Alan, and Robert, and one daughter. By an unknown mistress (or mistresses), he also had two illegitimate sons, Alan, Knt., and Geoffrey. His dispute with the bishop of Durham for lands in the soke of Welton was settled in 1100 by their restoration by King William II to the bishop. He confirmed his father's gifts to Whitby Abbey and made several additions, and was a benefactor of St. Peter's Hospital, York. In 1121 he was present at Durham with other magnates when the monks of Durham asserted their claim to the patronage of Tynemouth Priory. He witnessed notifications issued by King Henry I at Portsmouth, 1109-14, Winchester, 1115-16, and Rockingham, 1126-29. He and his son, William, gave land in Holme on the Wolds to Haslat de Leconfield. ALAN DE PERCY was living in 1130, and died not later than Dec. 1135. In Feb. 1135/6 King Stephen confirmed the benefactions made to Whitby Abbey by Alan de Percy and by his father, William de Percy. He was buried at Whitby Abbey. In 1140 his widow, Emma, quitclaimed to John, Abbot of Fountains, two bovates of land in Merston, Yorkshire. At an unknown date, she gave a carucate of land to Bridlington Priory, with the assent of her son, William.
      Anderson Genealogical Hist. of the House of Yvery 2 (1742): 50-58. Baker Hist. & Antiqs. of Northampton 1 (1822-30): 440 (Gaunt ped.). Dugdale Monasticon Anglicanum 6(1) (1830): 289. Tate Hist. of the Borough, Castle & Barony of Alnwick (1866): 412-414 (Percy ped.). Holmes Chartulary of St. John of Pontefract 2 (Yorkshire Arch. Soc. Recs. 30) (1902): 480 (chart). Clay Extinct & Dormant Peerages (1913): 83-85 (sub Gaunt), 158-167 (sub Percy). Farrer Barbi Yorkshire Charters 2 (1915): 430, 433 (chart). Parker Feet of Fines for the County of York, 1232-1246 6 (Yorkshire Arch. Soc. Recs. 67) (1925): 74. C.P. 10 (1945): 438-440 (sub Percy). Paget (1957) 440:1 (children: William, Alan le Mechin, Walter of Rougemont, Geoffrey I, Geoffrey II, Henry, Robert). Sanders English Baronies (1960): 148. Clay Early Yorkshire Charters 11 (1963): 2-3. Keats-Rohan Domesday Descendants (2002): 210.”