William Massey-Mainwaring William Massey-Mainwaring The Honourable William Frederick Barton Massey-Mainwaring (28 May 1845 – 12 March 1907) was an Irish art collector and Conservative Party politician in the United Kingdom. The fifth son of Eyre Massey, 3rd Baron Clarina and his wife Susan Elizabeth "née" Burton, he was originally known as William Frederick Barton Massey. Educated at Trinity College Dublin, he was called to the bar at the Inner Temple, London. In 1872 he married Isabella Anne Milman, a widow and only child of Benjamin Lee Mainwaring of Knaresborough. He assumed the surname Massey-Mainwaring on marriage. Massey-Mainwaring was a well-known art collector
Henry Mainwaring on 1 August 1614, reduced the town. Mainwaring's relations with the Moors were such that he was able to secure the release of their English prisoners. So feared was his pirate fleet that Spain offered Mainwaring a pardon and high command in return for his services under the Spanish flag. When his pirate activities almost broke the tenuous peace between England, Spain and Portugal, King James I threatened to send a fleet after Mainwaring, to whom he later granted a royal pardon in 1616 for having saved the Newfoundland trading fleet near Gibraltar. Mainwaring wrote a book on piracy ("Discourse