Mary de Burgh - 1624 (d. 1624) Parents Richard Burke, 2nd Earl of Clanricarde Margaret O'Brien Children Jane Moore Siblings John na Seamar Burke, 1st Baron Leitrim unknown daughter Bourke Richard 'Og' Bourke unknown son Bourke Lady Mary Burke Margaret de Burgh William mac an Iarla Burke Ulick Burke, 3rd Earl of Clanricarde unknown son Bourke