King of Great Britain and of Hanover from 1820 to 1830, eldest son of the preceding, born in London; in consequence of his father's insanity he became Regent in 1810; a tendency to profligacy early displayed itself in an intrigue with Mrs. Robinson, an actress; and two years afterwards in defiance of the Royal Marriage Act he secretly married Mrs. Fitzherbert, a Roman Catholic; in 1795 he publicly espoused Princess Caroline of Brunswick, whom later he endeavoured to divorce; a Burmese War (1823), the victory of Admiral Codrington at Navarino (1827), the Repeal of the Test and Corporation Acts (1828), and the passing of the Catholic Emancipation Bill (1829), were occurrences of some importance in an uneventful reign (1762-1830).