John Charles William FitzRoy, 9th Duke of Grafton (1914-1936)

Biography
The duke died aged twenty-two, unmarried and childless, after his Bugatti crashed during a motor race in Limerick, Ireland. His dukedom was inherited by his cousin, Charles, but his viscountcy of Thetford and earldom and barony of Arlington fell into abeyance between his sisters, Lady Jane and Lady Mary-Rose. The viscountcy and earldom remain abeyant, but the abeyance of his barony was terminated in 1999, in favour of Lady Jane's eldest daughter, Jennifer.

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