Who married William Hamilton (diplomat)?

Sir William Hamilton, (13 December 1730 – 6 April 1803), was a British diplomat, antiquarian, archaeologist and vulcanologist. After a short period as a Member of Parliament, he served as British Ambassador to the Kingdom of Naples from 1764 to 1800. He studied the volcanoes Vesuvius and Etna, becoming a Fellow of the Royal Society and recipient of the Copley Medal. His second wife was Emma Hamilton, famed as Horatio Nelson's mistress.

Emma, Lady Hamilton (26 April 1765; baptised 12 May 1765 – 15 January 1815) was an English model and actress, who is best remembered as the mistress of Lord Nelson and as the muse of the portrait artist George Romney.