William PLANTAGENET, (EARL)
William was a Baron named in the Magna Charta; William was 6th Earl of Warren, Surrey and Sussex; Royal Ancestors of Some LDS Families, Call, 1975, p. 154; William was sealed to mother and her first husband, William, Earl of Mortain & Boulogne, on 8 Apr 1936.
Ancestral File
John de Warren was 7th Earl of Warren, Surrey and Sussex; Memorials of the
Earls of Warren; The Plantagenet Ancestry, p 72 to 78 and other; Royal Dau of
Engl; Complete Peerage; Dict of Nat'l Biog (no results); Burke's Peerage (also
no additional results).
He married Maud Marshall, (Countess of Norfolk) 13 Oct 1225 at of Pembroke, Pembrokeshire, Wales . Maud Marshall, (Countess of Norfolk) was born at of Pembroke, Pembrokeshire, Wales Abt 1194 daughter of William Marshall, (Earl of Pembroke) and Isabel Fitz Gilbert de Clare, (Countess of Pembroke) .
They were the parents of 3
children:
Margaret (de Warren) Plantagenet
born 1227.
Isabel (de Warren) Plantagenet
born 1229.
John (de Warren) Plantagenet, (Earl of Surrey)
born Aug 1231.
William Plantagenet, (Earl) died 27 May 1240 .
Maud Marshall, (Countess of Norfolk) died 27 Mar 1248 .


