Margery de Burgh (died 1304) (d. 1304) Parents John de Burgh Cecily Baliol Children Edmond de Burgh Katherine de Burgh John de Burgh Aveline de Burgh Maud de Burgh Eleanor de Burgh Lady Joan de Burgh Elizabeth de Burgh Siblings Hawise de Burgh Marjorie de Burgh Devorguilla de Burgh Partners Richard Óg de Burgh, 2nd Earl of Ulster