Constance married Thomas De Mowbray, [DUKE OF NORFOLK before 1 Jun 1402 in Dispensation. Thomas (son of Thomas De Mowbray, [DUKE OF NORFOLK and Elizabeth Fitzalan, [DUCHESS OF NORF) was born on 17 Sep 1385 in Of, , , England; died on 8 Jun 1405 in Sp, Beheaded; was buried in Greyfriars, York, Yorkshire, England. [Group Sheet] [Family Chart]