Rupert Alexander George Cambridge, Viscount Trematon was an English-born great-grandson of Queen Victoria. Originally Prince Rupert of Teck, he and his family relinquished their German titles in 1917. As heir apparent to the Earldom of Athlone, he was known as Lord Trematon, but he died before he could inherit the title.
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
- Born
- April 24, 1907
- Died
- April 15, 1928