, by Lawrence, 1816 In late 1810, the King's mental health once again broke down, following the death of his youngest daughter,
Princess Amelia. Parliament agreed to follow the precedent of 1788; without the King's consent, the
Lord Chancellor affixed the Great Seal of the Realm to
letters patent naming Lords Commissioners. The letters patent lacked the
Royal Sign Manual, but were sealed by request of resolutions passed by both Houses of Parliament. The Lords Commissioners appointed by the letters patent, in the name of the King, then signified the granting of
Royal Assent to a bill that became the
Regency Act 1811. Parliament restricted some of the powers of the Prince Regent (as the Prince of Wales became known). The constraints expired one year after the passage of the Act. The Prince of Wales became Prince Regent on 5 February 1811. The Regent let his ministers take full charge of government affairs, playing a far smaller role than his father. The principle that the prime minister was the person supported by a majority in the House of Commons, whether the King personally favoured him or not, became established. His governments, with little help from the Regent, presided over British policy. One of the most important political conflicts facing the country concerned
Catholic emancipation, the movement to relieve Roman Catholics of various political disabilities. The
Tories, led by Prime Minister
Spencer Perceval, were opposed to Catholic emancipation, while the
Whigs supported it. At the beginning of the Regency, Prince George was expected to support the Whig leader,
Lord Grenville. He did not, however, immediately put Grenville and the Whigs into office. Influenced by his mother, he claimed that a sudden dismissal of the Tory government would exact too great a toll on the health of the King (a steadfast supporter of the Tories), thereby eliminating any chance of a recovery. In 1812, when it appeared highly unlikely that the King would recover, the Prince Regent again failed to appoint a new Whig administration. Instead, he asked the Whigs to join the existing
ministry under Perceval. The Whigs, however, refused to co-operate because of disagreements over Catholic emancipation. Grudgingly, Prince George allowed Perceval to continue as prime minister. On 11 May 1812,
Perceval was assassinated by
John Bellingham. The Prince Regent was prepared to reappoint all the members of the Perceval ministry under a new leader. The House of Commons formally declared its desire for a "strong and efficient administration", so George then offered leadership of the government to
Lord Wellesley and afterwards to
Lord Moira. He doomed the attempts of both to failure, however, by forcing each to construct an all-party ministry at a time when neither party wished to share power with the other. Possibly using the failure of the two peers as a pretext, George immediately reappointed the Perceval administration, with
Lord Liverpool as prime minister. The Tories, unlike Whigs such as
Lord Grey, sought to continue the vigorous prosecution of the
war in Continental Europe against the powerful and aggressive Emperor of the French,
Napoleon I. An anti-French alliance, which included
Russia,
Prussia,
Austria,
Britain and several smaller countries, defeated Napoleon in 1814. In the subsequent
Congress of Vienna, it was decided that the
Electorate of Hanover, a state that had shared a monarch with Britain since 1714, would be raised to the
Kingdom of Hanover. Napoleon returned from exile in 1815, but was defeated at the
Battle of Waterloo by
the Duke of Wellington, brother of Lord Wellesley. During this period George took an active interest in matters of style and taste, and his associates such as the dandy
Beau Brummell and the architect
John Nash created the
Regency style, exemplified by the Regency terraces of
Regent's Park and
Regent Street. George took up the new idea of the seaside spa and had the
Brighton Pavilion developed as a fantastical seaside palace, adapted by Nash in the "Indian Gothic" style inspired loosely by the
Taj Mahal, with extravagant "Indian" and "Chinese" interiors. ==Reign==