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
Dorothea of Saxony Dorothea of Saxony Dorothea of Saxony (; 4 October 1563 in Dresden – 13 February 1587 in Wolfenbüttel) was a Saxon princess from the House of Wettin and by marriage Duchess of Brunswick-Wolfenbüttel. Dorothea was born 4 October 1563, the daughter of the Elector Augustus of Saxony (1526-1586) and his wife Anna (1532-1585), daughter of King Christian III of Denmark. Of the four 15 children from the marriage of her parents, only four survived their father; Dorothea among them. On 26 September 1585 in Wolfenbüttel, the twenty-two-year-old Dorothea married the future Duke Henry Julius of Brunswick-Wolfenbüttel (1564-1613), who was one