George IV's relationship with his wife Caroline had deteriorated by the time of his accession. They had lived separately since 1796, and both were having affairs. In 1814, Caroline left the United Kingdom for continental Europe, but she chose to return for her husband's coronation, and to publicly assert her rights as queen consort.
Frederick William IV (German: Friedrich Wilhelm IV.; 15 October 1795 – 2 January 1861), the eldest son and successor of Frederick William III of Prussia, reigned as King of Prussia from 7 June 1840 to his death.
Guillermo IV murió en el castillo de Windsor el 20 de junio de 1837, a los 71 años, siendo sepultado en la capilla de san Jorge, ubicada dentro del mismo castillo. Como no le sobrevivió ningún descendiente legítimo, la corona británica pasó a su sobrina Victoria , de dieciocho años.