King of England, known as the "sailor king," born in Buckingham Palace, the third son of George III.; entered the navy in 1779; saw service under Rodney and Nelson, but practically retired in 1789, as from insubordination he had to do, though he was afterwards promoted to be Admiral of the Fleet, and even Lord High Admiral, and continued to take great interest in naval affairs; after living, as Duke of Clarence, from 1792 to 1816 with Mrs. Jordan, the actress, by whom he had 10 children, he married in 1810 Adelaide, eldest daughter of the Duke of Saxe-Meiningen; on the death of the Duke of York in 1827 became heir-presumptive, and on the death of George IV. in 1830 succeeded to the throne; his reign was distinguished by the passing of the first Reform Bill in 1832, the abolition of slavery in the colonies in 1833, the reform of the poor-laws in 1834, and the Municipal Reform Act in 1835; died at Windsor, and was succeeded by his niece. Queen Victoria (1765-1837).