Peter I, Duke of Bourbon

Peter I (1311–1356) was the second Duke of Bourbon, succeeding his father Louis I in 1342 as duke and Grand Chamberlain of France. In 1336 he married Isabella of Valois, sister of Philip VI. He fought in Brittany in 1341, helping the French claimant Charles de Blois take possession of the duchy.

In August 1345 he was made lieutenant in Languedoc against Henry of Derby. Peter raised a new army, but Derby defeated it at Auberoche that October, and Peter was wounded at Crécy in August 1346.

From 1347 he led peace embassies, all fruitless. On 19 September 1356 he was killed at Poitiers, shielding King John II with his body; his daughters Joanna and Blanche had married Charles V of France and Peter the Cruel of Castile.