William Fiennes, 1st Viscount Saye and Sele (born May 28, 1582, Broughton Castle, near Banbury, Oxfordshire, Eng.—died April 14, 1662, Broughton Castle) was an English statesman, a leading opponent of James I and Charles I in the House of Lords and a supporter of Parliament in the English Civil Wars.
The only son of Richard Fiennes, 7th Lord Saye and Sele, he was educated at New College, Oxford, and succeeded to his father’s lordship (barony) in 1613. He opposed the policy of James I in Parliament and in 1622 was imprisoned for six months for objecting to the imposition of a benevolence by the King. Created a viscount in 1624 through the friendship of George Villiers, 1st Duke of Buckingham, he nevertheless continued his opposition to the crown in the early Parliaments of Charles I.
From 1630 Saye became actively engaged in colonization schemes. He was a member of the company formed to colonize Providence Island (now Providencia) in the Caribbean Sea and in 1635 was responsible with Robert Greville, Baron Brooke, for the establishment of a settlement on the Connecticut River which was named Saybrook after them.
Saye reluctantly accompanied Charles I against the Scots in the first Bishops’ War in 1639, but together with Brooke he refused to take the oath binding peers to fight for the king. In 1642 Parliament appointed him a member of the Committee of Safety, and, after the outbreak of the first of the English Civil Wars in August, Saye raised a regiment for the Parliamentary forces. He was mainly responsible for the passage through the House of Lords of the Self-Denying Ordinance (April 1645), which discharged members of Parliament from holding civil or military commands. A supporter of the army in its struggle with Parliament in 1647, he soon became eager for Parliament to reach an agreement with the king and was one of the Parliamentary commissioners who negotiated with Charles at Newport, Isle of Wight (April–November 1648). After the king’s execution (Jan. 30, 1649), Saye retired from public life. He took his seat in the Convention Parliament in April 1660 and, in June, after the restoration of Charles II, was appointed a privy councillor.