Piers married Maud(Mahaut De Lacy) Lacy before 19 Feb 1243/1244 in Of, , Herefordshire, England. Maud(Mahaut (daughter of Gilbert De Lacy and Isabel Bigod) was born about 1232/1240 in , Dublin, Dublin, Ireland; died on 11 Apr 1304. [Group Sheet] [Family Chart]