Margery de Burgh Medieval Irish noblewoman (1224–1253) Parents Richard Mór de Burgh, 1st Baron of Connaught Egidia de Lacy, Lady of Connacht Children Theobald Butler, 4th Chief Butler of Ireland Siblings William Óg de Burgh Walter de Burgh, 1st Earl of Ulster Matilda de Burgh Partners Theobald Butler, 3rd Chief Butler of Ireland