Margaret O'Brien Peerage person ID=29770 (b. 1937) Parents Donogh O'Brien, 4th Earl of Thomond Helen Roche Children Mary MacCarty Sheela MacCarty Ellena McCarthy Margarett MacCarty Donough MacCarty, 1st Earl of Clancarty Charles MacCarty Eleanor MacCarty Siblings Teige O'Brien Henry O'Brien, 5th Earl of Thomond Barnabas O'Brien, 6th Earl of Thomond Partners Charles MacCarty, 1st Viscount Muskerry
