King William IV of Great Britain

William Henry was born 21 August 1765, and was created Duke of Clarence and St. Andrews, and Earl of Ulster in 1789. He lived with Mrs. Dorothy Jordan (c. 1760-1816) for several years, with whom he had ten children who received the surname FitzClarence; and married Princess Adelaide of Saxe-Meiningen (1792-1849) in 1818, with whom he had two children, both of whom died in infancy. He ascended the thrones of Great Britain, Ireland, and Hanover as King William IV on 26 June 1830, and was crowned on 8 September 1831. He died 20 June 1837.

Children by Mrs. Jordan:

• Sophia FitzClarence (1792-1837)
• George Augustus Frederick FitzClarence, Earl of Munster (1794-1842)
• Henry FitzClarence (1795-1817)
• Mary FitzClarence (1798-1864)
• Frederick FitzClarence (1799-1854)
• Elizabeth FitzClarence (1801-1856)
• Adolphus FitzClarence (1802-1856)
• Augusta FitzClarence (1803-1865)
• Augustus FitzClarence (1805-1854)
• Amelia FitzClarence (1807-1858)

Children by Princess Adelaide:

• Charlotte Augusta Louisa (born and died on 27 March 1819)
• Elizabeth Georgina Adelaide (20 December 1820-4 March 1821)