FITZGERALD, John, 18th Earl of Kildare [I] (c.1661-1707), of Caversham Park, Oxon.

b. c. 1661, o. s. of Wentworth Fitzgerald†, 17th Earl of Kildare [I], by Lady Elizabeth, da. of John Holles, 2nd Earl of Clare. educ. Oxf. Univ. DCL 1683. m. (1) aft. Aug. 1682, Mary (d. 1683), da. of Henry O’Brien†, Ld. Ibrackan, 1s. d.v.p. ; (2) lic. 12 June 1684 (with £10,000), Lady Elizabeth (d. 1758), da. and coh. of Richard Jones*, 1st Earl of Ranelagh [I], s.p. suc. fa. as 18th Earl 5 Mar. 1664.