 He was kept prisoner in the Tower of London where he languished, and his estates were sequestrated apart from a small portion that his wife and four children were allowed to keep.William Cranstoun, the fifth Lord Cranstoun sat in the last Scottish Parliament and supported the Treaty of Union.One of his descendants, George Cranstoun, was an eminent lawyer and judge, who became an advocate and Dean of the Faculty of Advocates in 1823.