Lady Mary Elizabeth FitzGerald, Countess of Kildare

[http://www.thepeerage.com/p2613.htm#i26125]

Lady Mary O'Brien was the daughter of William O'Brien, 3rd Earl of Inchiquin and Mary Villiers.1

She married Robert FitzGerald, 19th Earl of Kildare, son of Hon. Robert FitzGerald and Mary Clotworthy, on 7 March 1708/9.1

As a result of her marriage, Lady Mary O'Brien was styled as Countess of Kildare on 7 March 1708/9. From 7 March 1708/9, her married name became FitzGerald.
Children of Lady Mary O'Brien and Robert FitzGerald, 19th Earl of Kildare

1.Lady Margaretta FitzGerald+ d. 19 Jan 1766

2.Richard FitzGerald+

3.Lt.-Gen. James FitzGerald, 1st Duke of Leinster+ b. 29 May 1722, d. 19 Nov 17731

Citations

1.[S37] Charles Mosley, editor, Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes (Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003), volume 2, page 2299. Hereinafter cited as Burke's Peerage and Baronetage, 107th edition.