Margaret O'Brien Peerage person ID=483203 (b. 1490) Parents Toirdhealbhach Donn Ó Briain Ellen FitzGerald Children Móre O'Carroll Siblings Donogh O'Brien Dermod O'Brien Ranelt O'Brien Connor O'Brien Murrough O'Brien, 1st Earl of Thomond Teig O'Brien Any O'Brien Honora O'Brien Móre O'Brien Slany O'Brien Edmund Butler Partners Mulrony McShane O'Carroll