John Osborne, 11th Duke of Leeds

John Francis Godolphin Osborne, 11th Duke of Leeds (12 March 1901 – 26 July 1963) was a British peer.

He was the son of Sir George Godolphin Osborne, 10th Duke of Leeds and Lady Katherine Frances Lambton. He succeeded to the title of 11th Duke of Leeds and its subsidiary titles on 10 May 1927.

He inherited half a million pounds after tax from his father at the age of twenty-six in 1927, but his father also left gambling debts.Hornby Castle estate was placed on the market in 1930 and the Duke spent the rest of his life as a tax exile on the French Riviera, and on the island of Jersey at his mansion Melbourne House. Hornby Castle, bar one gutted wing, was demolished in 1931.

Bibulous and self-centred, he had no interest in living up to his title, and dissipated much of the family's remaining wealth, although enough remained for his sole child Lady Camilla to inherit, in addition to an allowance, a million pound lump sum from the family trust in 1971.

In 1965 he sold a Goya portrait of the Duke of Wellington at auction for 140,000 pounds. It was subsequently stolen from the National Gallery in a famous theft.

The Duke was married three times:

Since the 11th Duke died without male issue, his titles passed to his cousin D'Arcy Osborne, 12th Duke of Leeds, the last holder of these titles when the lineage became extinct.

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