(born 1332—died Jan. 1, 1387) King of Navarra (1349–87). He acquired Normandy from John II of France by threatening an English alliance. Arrested for his treachery in 1356, he escaped a year later and regained Normandy. He pursued shifting alliances in Spain in an effort to expand Navarrese power. Charles V voided his claims in France, and the discovery of his plot to poison the French king cost him all of Normandy except Cherbourg.
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