Joan was born about 1250 in England. She died after November 18th, 1307.
General Notes
He [Robert de Ufford] married, 2ndly, before 1286-87, Joan. He died shortly before 9 September 1298. His widow was living, 18 November 1307. [Complete Peerage XII/2:148-9, (transcribed by Dave Utzinger)]