Sir Gerald FitzGerald, 4th Baron Offaly - Irish Biography

FitzGerald, Sir Gerald, 4th Baron Offaly, succeeded his father in 1277. He completed the Grey Abbey at Kildare, and founded the Franciscan Abbey at Clane. He carried on wars with the O'Conors. In a battle with the O'Briens in 1287 many Anglo-Norman knights were slain, and he received a wound from which he shortly afterwards died at Rathmore. He was buried at Kildare.

Sources

202. Kildare, The Earls of, and their Ancestors: from 1057 to 1773, with Supplement: Marquis of Kildare. 2 vols. Dublin, 1858-'62.