When Perceval was assassinated in May 1812, George, the Prince Regent, successively tried to appoint four men to succeed him, but they were unable to form ministries; Liverpool, the Prince Regent's fifth choice for the post, reluctantly accepted office on 8 June 1812. The cabinet proposed Liverpool as his successor with Lord Castlereagh as leader in the Commons but after an adverse vote in the Lower House, they subsequently gave both their resignations. The Prince Regent, however, found it impossible to form a different coalition and confirmed Liverpool as prime minister on 8 June. Liverpool's government contained some of the future great leaders of Britain, such as Lord Castlereagh, George Canning, the Duke of Wellington, Robert Peel, and William Huskisson. Liverpool is considered a skilled politician, and held together the liberal and reactionary wings of the Tory party, which his successors, Canning, Goderich and Wellington, had great difficulty with.