ID
Isabel de Warenne
d. 1199
Vitals
Died
13 Jul 1199
Family
About
Isabel de Warenne, suo jure Countess of Surrey (d. 13 July 1199), sole heiress of the first Warenne house; married first to William de Blois, King Stephen's son (d.s.p. 1159 - that royal marriage left no issue), and second, in 1164, to Hamelin. Through her the earldom and the name passed to the Plantagenet-Warennes.
Research notes
✓ DOCUMENTED per Cokayne, Complete Peerage 1st edn, SURREY pp.322-328 (page images supplied by Aynsley 24 Aug 2026), entries IV and 4-bis. Added 24 Aug 2026.