Not actually descended from anyone famous, but my gt-grandmother met an Italian electrical engineer from Genoa, living in London, and as a result my grandmother was born in 1895, and then fostered and adopted. Her true parents were unable to marry - he was a Catholic, and she not a
Catholic - and five years later he married a woman of the same religious persuasion, who was also a grand-daughter of Daniel O'Connell, the "Liberator" of Ireland.
My grandmother, to prove this was not just another unhappy story of abandonment, grew up in a well-to-do family on Highgate Hill, married my grandfather, who was in the Civil Service in India; when he got knighted in 1946 she became a Lady. She died at the age of 96 in 1992, and was the most remarkable woman I have ever met...
Keith