He [Ralph Fitz William] married, 2ndly [1st wife unknown] (royal licence, 1 November 1281, for a fine of 100 marks, Margery, widow of Sir Nicholas CORBET (who died before 25 December 1289), and 2nd daughter and coheir of Sir Hugh DE BOLEBEK, of Angerton, Doddington, Styford, Shotley, and Heddon, Northumberland, by Tiphaine, his wife: she was aged 21 and more in 1262. [Complete Peerage V:513-6, (transcribed by Dave Utzinger)]