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Henry I (born 1069, Selby, Yorkshire, England—died December 1, 1135, Lyons-la-ForĂȘt, Normandy) was the youngest and ablest of William I the Conqueror’s sons, who, as king of England (1100–35), strengthened the crown’s executive powers and, like his father, also ruled Normandy (from 1106). Henry was crowned at Westminster on August 5, 1100, three days after his brother, King William II, William the Conqueror’s second son, had been killed in a hunting accident. Duke Robert Curthose,...