René I of Anjou (Italian: Renato; Occitan: Rainièr; 16 January 1409 – 10 July 1480) was Duke of Anjou and Count of Provence from 1434 to 1480, who also reigned as King of Naples from 1435 to 1442 (then deposed). Having spent his last years in Aix-en-Provence, he is known in France as the Good King René (Occitan: Rei Rainièr lo Bòn; French: Le bon roi René).
René was a member of the House of Valois-Anjou, a cadet branch of the French royal house, and the great-grandson of John II of France. He was a prince of the blood, and for most of his adult life also the brother-in-law of the reigning king Charles VII of France. Other than the aforementioned titles, he was also Duke of Bar from the 1420s onwards and Duke of Lorraine from 1431 to 1453.
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