Gerald FitzGerald, 11th Earl of Kildare Gerald FitzGerald, 11th Earl of Kildare Gerald FitzGerald, 11th Earl of Kildare (1525 – 16 November 1585), also known as the "Wizard Earl" (a sobriquet also given to Henry Percy, 9th Earl of Northumberland), was an Irish peer. He was the son of Gerald FitzGerald, 9th Earl of Kildare and his second wife Elizabeth Grey, Countess of Kildare. FitzGerald became the sole male representative of the Kildare Geraldines at the age of twelve, after his half-brother, Silken Thomas, the tenth earl, was executed at Tyburn in 1537 with five of his uncles. He spent the next few years on the
Earl of Tyrone other end of Ireland. He was also given the subordinate title of Viscount Decies; both titles became extinct upon the death of his younger son, the third earl, in 1704; he left an only daughter, Lady Katherine Power, but both titles descended by patent to male heirs only. It was created a final time in 1746 for Marcus Beresford, 1st Viscount Tyrone, son-in-law of the last Power earl. His son was created Marquess of Waterford in 1789, and the title has since been a subsidiary title of the Waterford title. The king or chief of the O'Neills of Tyrone, Conn