Daughter of Ralph Fitz William

  Information about this person:

• Background Information. ¹⁴¹
Nicholas Martin married, 2^nd, in 1259 or 1260, Isabel, widow of Hugh Peverel, and granddaughter and coheiress of Ralph Fitz Willaim, of Brompton Ralph and Withycombe, which Isabel held the manor of Brown in Treborough, a third of the original manor of Withycombe, and other lands.

~Cokayne's The Complete Peerage, 2nd Edition, Vo. VIII (Peverel) pp. 533-535