Geoffrey FitzClarence, 3rd Earl of Munster 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 Lord George
Princess Dorothea of Courland Congress of Vienna, and it is even alleged that she became his mistress sometime after 1815. On 31 August 1817, Talleyrand was made a duke and peer of France by Louis XVIII of France, and on 2 December he was also granted the duchy of Dino (a 1.5 km by 1.2 km Calabrian island) by the king of Sicily in recognition of his services at Vienna. The duchy of Dino was immediately handed down to his nephew and his wife and so Dorothea also became duchess of Dino. On 24 March 1818 she and her husband separated, though this was