Sir John Ratcliffe or Radcliffe (22 February 1582 – 5 November 1627[1]) was an English soldier and politician who sat in the House of Commons between 1614 and 1626. He was killed in action in France during the Siege of Saint-Martin-de-Ré.
Ratcliffe was the third son of Sir John Ratcliffe of Ordsall, Lancashire who was an MP. In 1599, he was heir to his elder brother Alexander who died in action in Ireland, where John, aged sixteen, was also serving, and where another older brother had already been murdered,[1] leaving him the family estates.[2] He was knighted 24 September 1599 on the sands by Sir Robert Gardiner's house in Dublin.[3] He was admitted at Gray's Inn on 18 March 1606.[2]
From 1606 to 1610 he travelled in France and the Low Countries, and from that period until 1615 he also served as a captain with the Dutch army. During truces he went home to do legal business and he invested in the Virginia Company.[1]
Ratcliffe resumed military service within the English army, being a captain of horse by 1624, and a lieutenant-colonel in 1625.[1] On 8 September 1627, Ratcliffe was appointed a colonel in an invasion force under the command of George Villiers, Duke of Buckingham which attacked the Isle of Rhe in order to relieve the Siege of La Rochelle.[1] He was killed during the Siege of Saint-Martin-de-Ré and the Duke was later forced to withdraw in defeat.[2]