Sir William de Say, Knt.

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Sir William de Say, Knt., son of Sir Geoffrey de Say, Knt. and Hawise de Clare, was born before 1209.1 He died before 12 February 1271.1

William married (1) Sibyl (…), say 1240;1 he married (2) Mary (…) say 1266. The ancestry of both women is unknown (or not traced here).1

Family 1

Sibyl (…) d. aft. 1253

Family 2

Mary (…) d. bt 1280 - 1285
This person was last edited on17 Jul 2021


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five volumes (Salt Lake City, Utah: s.p., 2013), 4:562 (Say 7), further cited as Richardson, Royal Ancestry.
  2. [S1947] Richardson, Royal Ancestry, 3:287 (Marshall 6), 4:564 (Say 7.iv).