
Sir Henry Sidney, English soldier, politician and Lord Deputy of Ireland from 1565 to 1571 and from 1575 to 1578, is born on July 20, 1529, probably in London. He cautiously implements Queen Elizabeth I’s policy of imposing English laws and customs on the Irish.
Sidney is the eldest son of Sir William Sidney of Penshurst, England and Anne Pakenham. William Sidney is a prominent politician and courtier during the reigns of Henry VIII and Edward VI, from both of whom he receives extensive grants of land, including the manor of Penshurst in Kent, which becomes the principal residence of the family.
Sidney is brought up at court as the companion of Prince Edward, afterward King Edward VI, and continues to enjoy the favour of the Crown, serving under Mary I of England and then, particularly, throughout the reign of Queen Elizabeth I. He is instrumental in the Elizabethan conquest of Ireland, serving as Lord Deputy three times. His career is controversial both at home and in Ireland.
Sidney is knighted by Edward VI in 1550. From 1556 to 1559 he is Vice-Treasurer of Ireland under his brother-in-law, the Lord Deputy Thomas Radclyffe, later the 3rd Earl of Sussex.
Appointed Lord Deputy by Elizabeth in 1565, Sidney faces a major rebellion in Ulster led by the powerful chieftain Shane O’Neill. Failing to subdue O’Neill by force, he intrigues against him with his enemies, the O’Donnells of Tyrconnell and the MacDonnells of Antrim. Finally, O’Neill is assassinated by the MacDonnells in 1567. Nevertheless, Sidney is still not strong enough to destroy completely the power of Ulster’s native chieftains. He does, however, persuade a number of Irish chiefs to submit to Elizabeth’s authority, and he establishes English presidents of Munster and Connacht to control the chiefs. In addition, by refraining from introducing anti-Roman Catholic legislation in the Parliament of Ireland of 1569–71, he makes possible the containment and ultimate defeat in 1573 of a rebellion of Munster Catholics led by James FitzMaurice FitzGerald.
Resenting the Queen’s failure to provide him with an adequate military force, Sidney resigns in 1571, but is reappointed Lord Deputy four years later. His arbitrary taxation arouses popular resentment and leads to his recall in 1578. Thereafter he serves only as president of the Council of Wales and the Marches, living chiefly at Ludlow Castle for the remainder of his life, dying there at the age of 56 on May 5, 1586.
Sidney marries Mary Dudley, eldest daughter of John Dudley, 1st Duke of Northumberland, in 1551. They have three sons and four daughters. His eldest son is Sir Philip Sidney, and his second is Robert Sidney, 1st Earl of Leicester. His daughter, Mary Sidney, marries Henry Herbert, 2nd Earl of Pembroke, and by reason of her literary achievements, is one of the most celebrated women of her time.
Richard Chancellor, English explorer and navigator, grows up in Sidney’s household.
