Geoffrey FitzClarence, 3rd Earl of Munster brother Aubrey. Geoffrey FitzClarence, 3rd Earl of Munster Geoffrey George Gordon FitzClarence, 3rd Earl of Munster, DSO (18 July 1859 – 2 February 1902), known as Lord Tewkesbury 1870–1901, was a British peer, and the great-grandson of King William IV by his mistress Dorothea Jordan. Born Geoffrey George Gordon FitzClarence, he was the son of William FitzClarence, 2nd Earl of Munster (19 May 1824 – 30 April 1901) and Wilhelmina Kennedy-Erskine (27 June 1830 – 9 October 1906). His parents were first cousins, thus making Geoffrey a great-grandson of William IV twice over. His grandfather on his paternal side was
Sophia Dorothea of Celle Sophia Dorothea of Celle Sophia Dorothea of Celle (15 September 1666 – 13 November 1726) was the repudiated wife of future King George I of Great Britain, and mother of George II. The union with her first cousin was an arranged marriage of state, instigated by the machinations of his mother, Sophia of Hanover. She is best remembered for her alleged affair with Philip Christoph von Königsmarck that led to her being imprisoned in the Castle of Ahlden for the last thirty years of her life. Sophia Dorothea was born on 15 September 1666, the only child of George William,