Richard Fitzgerald Irish politician (1733–1776) Parents Robert FitzGerald, 19th Earl of Kildare Lady Mary O'Brien Children Caroline FitzGerald unknown FitzGerald Siblings Frances FitzGerald Henrietta FitzGerald Mary FitzGerald George FitzGerald Catherine FitzGerald Anne FitzGerald Lady Margaretta FitzGerald William FitzGerald Elizabeth FitzGerald James FitzGerald, 1st Duke of Leinster Partners Margaret King