William de Percy, Earl of Caux

Abt 1015 - 1096  (81 years)

• Name	William de Percy  [1, 2, 3]
  Suffix	Earl of Caux
  Birth	Abt 1015	Caux, Normandie, France
  Gender	Male
  Death	1096	Antioch, Antakya, Pisidia, Asia Minor
  Burial	Whitby, North Riding, Yorkshire, England
  Person ID	I16586	My Genealogy
  Last Modified	16 May 2026

  
  

  Father	Geoffrey de Percy, Earl of Caux,   b. Abt 992, Perci-en-Auge, Normandie, France d. Yes, date unknown
  Relationship	natural
  Mother	Margaret de Percy,   b. Abt 998, Perci-en-Auge, Normandie, France d. Yes, date unknown
  Relationship	natural
  Marriage	Abt 1015	Caux, Normandie, France   [4]
  Family ID	F4418	Group Sheet  |  Family Chart

  
  

  Family	Emma de Port, Countess of Poitiers,   b. Abt 1030, Caux, Normandie, France d. Aft 1096 (Age > 67 years)
  Marriage	Abt 1049	Caux, Normandie, France   [3]
  Children	1. Alan de Percy, Earl of Caux,   b. Abt 1050, Caux, Normandie, France d. Bef Dec 1135 (Age < 85 years)  [Father: natural]  [Mother: natural]   2. Geoffrey de Percy,   b. Abt 1052, Caux, Normandie, France d. Yes, date unknown  [Father: natural]  [Mother: natural]   3. Richard de Percy,   b. Abt 1054, Caux, Normandie, France d. Yes, date unknown  [Father: natural]  [Mother: natural]   4. Walter de Percy,   b. Abt 1056, Caux, Normandie, France d. Yes, date unknown  [Father: natural]  [Mother: natural]   5. William de Percy,   b. Abt 1058, Caux, Normandie, France d. Yes, date unknown  [Father: natural]  [Mother: natural]
  Family ID	F4419	Group Sheet  |  Family Chart
  Last Modified	16 May 2026

  
  

• Sources

  [S18] Personal knowledge of Kirk Larson, [ADDRESS FOR PRIVATE USE]\. [S19] The Church of Jesus Christ of Latter-day Saints, database, \i FamilySearch\i0, (Name: (http://www.familysearch.org);). [S31] Edmundson, Isaac & Cokayne, George Edward, "Complete baronetage: Microprint ed.", (Name: (Gloucester : A. Sutton, 1983.), ISBN: 0-86299-004-1; LC CALL NO.: CS424.C681983; LCCN: 87-173374 //r914;), 3:270, 929.7/2 ED: 19. [S132] Gentala, Peter Grard, "Ancient Genealogy & Mythology: Genealogical Research of Peter Grard Gentala", (Name: E-mail documentation (Genealogy Forum, America Online, 2 Jan 1996) , Peter Grard Gentala (rocksword@aol.com);).