rthur, Prince of Brittany (1187-1203), grandson of Henry II. On the death of his uncle, Richard I, Arthur’s claim as son of Geoffrey, elder brother of John, king of England, was upheld by several French provinces, and, at first, by Philip Augustus of France. John captured Arthur in 1202, and imprisoned him at Falaise and at Rouen, where he disappeared in 1203, murdered, it is said, by the hands of his uncle. See Shakespeare’s King John and Norgate’s John Lackland (1902). [World Wide Illustrated Encyclopedia, 1935]

Born posthumously. Died unmarried and without issue. Killed. {Burke’s Peerage} [GADD.GED]

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