Robert O'Brien (1776-1838) (1776–1838) Parents Sir Lucius O'Brien, 3rd Baronet Anne ffrench Children Lucy O'Brien Catherine Maria O'Brien Siblings Charlotte Sophia O'Brien Lucius O'Brien Sir Edward O'Brien, 4th Baronet Katherine O'Brien Nicola Maria O'Brien Donough Acheson O'Brien Anne Maria O'Brien Partners Anne O'Brien unknown (?)