Canning's views on the Catholic Question were not well received by the most conservative Tories, including the Duke of Wellington. As a result, the ministry was forced to include Whigs. Canning died later in that year, leaving Lord Goderich to lead the tenuous Tory–Whig coalition. Goderich left office in 1828, to be succeeded by Wellington, who had by that time accepted that the denial of some measure of relief to Roman Catholics was politically untenable. George was never as friendly with Wellington as he had been with Canning and chose to annoy the Duke by pretending to have fought at Waterloo disguised as a German general. With great difficulty Wellington obtained the King's consent to the introduction of a Catholic Relief Bill on 29 January 1829. Under pressure from his fanatically anti-Catholic brother, the Duke of Cumberland, the King withdrew his approval and in protest the Cabinet resigned "en masse" on 4 March. The next day the King, now under intense political pressure, reluctantly agreed to the Bill and the ministry remained in power. Royal Assent was finally granted to the Catholic Relief Act on 13 April.