John na Seamar Burke, 1st Baron Leitrim Irish noble (d. 1583) Parents Richard Burke, 2nd Earl of Clanricarde Lady Margaret O'Brien Children William Burke, Lord of Bealatury Redmond Burke, 2nd Baron Leitrim Tomás Burke John Óge Burke Siblings unknown daughter Bourke Richard 'Og' Bourke Mary de Burgh unknown son Bourke Lady Mary Burke Margaret de Burgh William mac an Iarla Burke Ulick Burke, 3rd Earl of Clanricarde unknown son Bourke Murrough McDermot O'Brien, 3rd Baron Inchiquin