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 Northumberland English Army which defeated a larger Scottish force at the Battle of Neville's Cross. His son, Henry de Percy, 3rd Baron Percy married Mary of Lancaster, an aunt of John of Gaunt's wife Blanche of Lancaster. <section end=Percy Family /> <section begin=1377/> In 1377 the next Henry Percy, was created Earl of Northumberland, which title he was given after the coronation of Richard II. Nor was this all, for he was that Northumberland whose doings in the next reign fill so large a part of Shakespeare's "Henry IV", and he was the father of the most famous Percy of all,