Piers married Isabel De Ferrieres about 1215 in Of, , Herefordshire, England. Isabel (daughter of Walkelin (William) De Ferrieres, [Seigneur of Fer and Goda De Toni) was born about 1172 in Of, Oakham, Rutlandshire, England; was christened in Of Castle, Tutbury, Staffordshire, England; died before 31 May 1252; was buried in St John Hsptl Ch, Lechlade, Gloucestershire, England. [Group Sheet] [Family Chart]