Henry Mainwaring Henry Mainwaring Sir Henry Mainwaring (1587–1653), was an English lawyer, soldier, author, seaman and politician who sat in the House of Commons from 1621 to 1622. He was for a time a pirate based in Newfoundland and then a naval officer with the Royal Navy. He supported the Royalist cause in the English Civil War. Mainwaring was born in Ightfield, Shropshire, second son of Sir George Mainwaring and his wife Ann, the daughter of Sir William More of Loseley Park in Surrey. His maternal grandfather was Sir William More, Vice-Admiral of Sussex. He graduated from Brasenose College at Oxford University,
Mainwaring baronets of the United Kingdom on 26 May 1804 for Henry Mainwaring, son of Thomas Weterall Mainwaring. It was extinct on the death of the 5th Baronet in 1934. Mainwaring baronets The Baronetcy of Mainwaring of Over-Peover has twice been created for members of the family of Mainwaring of Over-Peover, Cheshire. It was created on 22 November 1660 by Charles II on his restoration, for Thomas Mainwaring, High Sheriff of Cheshire in 1657 and Knight of the Shire otherwise Member of Parliament for Cheshire in 1660. The baronetcy was extinct on the death of the 4th Baronet. However his widow remarried