Captain Bettesworth of the Royal Navy married Lady Hannah Althea Whitbread, daughter of General Charles Grey, first Earl Grey. He was killed at Bergen 25 May 1808 while in command of the Tartar. He was a descendant of the Travanion family (Marchand). Sophia Trevanion had married Admiral John Byron.

REFERENCES TO George Edmund Byron Bettesworth:

Lord Byron to Elizabeth Bridget Pigot, 26 October 1807 in Letters and Journals of Lord Byron 2 Vols (London: John Murray, 1830)

Thomas Creevey to Elizabeth Ord, 7 May 1834 in The Creevey Papers: A Selection from the Correspondence & Diaries of the late Thomas Creevey, M.P. (London: John Murray, 1903)