Thomas Wentworth, 1st Earl of Strafford (13 April 1593 (O.S.) – 12 May 1641) was an English statesman and a major figure in the period leading up to the English Civil War. He served in Parliament and was a supporter of King Charles I. From 1632–40 he was Lord Deputy of Ireland, where he established a strong authoritarian rule. Recalled to England, he became a leading advisor to the King, attempting to strengthen the royal position against Parliament. When Parliament condemned him to death, Charles signed the death warrant and Wentworth was executed.
Thomas Wentworth was born on 13 April 1593 in London. He was the son of Sir William Wentworth, of Wentworth Woodhouse, near Rotherham, a member of an old Yorkshire family, and of Anne, daughter of Sir Robert Atkins of Stowell, Gloucestershire. He was educated at St John's College, Cambridge, became a law student at the Inner Temple in 1607, and in 1611 was knighted and married Margaret, daughter of Francis Clifford, Earl of Cumberland and Grisold Hughes.
Wentworth entered the English Parliament in 1614 as Yorkshire's representative in the "Addled Parliament", but it was not until the parliament of 1621, in which he sat for the same constituency, that he took part in debate. His position was ambivalent. He did not sympathise with the zeal of the popular party for war with Spain, favoured by George Villiers, 1st Duke of Buckingham, James I's foremost advisor and favourite, but James's denial of the rights and privileges of parliament seems to have caused him to join in the vindication of the claims of the House of Commons, and he supported the protestation which dissolved the third parliament of James.