. . . . . . . . . . . . "Earl of Ulster" . "Uilleag Donn de B\u00FArca" . . . "1312-09-13" . . . "William Donn de Burgh, 3rd Earl of Ulster" . "the last de Burgh earl" . "Great Earl of Ulster" . . "William Donn de Burgh, 4th Lord of Connaught" . . . . . . . . "William Burke" . . . . . "William de Burgh, 3rd Earl of Ulster" . "William Donn de Burgh, 3rd Earl" . . . . "William Donn de Burgh" . . . . . . . . . "1333-06-06" . "William Donn de Burgh, 3rd Earl of Ulster" . . . . "William de Burgh, 1st Baron Burgh" . . "William de Burgh" . "Earldom of Ulster" . "3rd Earl" . .