Odo IV of Burgundy

Odo IV (1295 – 3 April 1349), second son of Robert II and Agnes of France, became Duke of Burgundy in 1315, succeeding his brother Hugh V. In 1316 he defended his niece Joan's rights against her uncle Philip the Tall, and in 1318 he married Philip's eldest daughter, Joan III, Countess of Burgundy.

When she inherited Artois and the County of Burgundy in 1330, Robert of Artois, a friend of Philip VI, contested Artois until his claim was found to rest on documents forged on his orders. Odo was one of Philip VI's trusted advisers: wounded at Cassel in 1328, he held Saint-Omer against Robert in July 1340, sallying out and barely regaining the walls before the Flemings broke.

A patron of artists and the church, he died of plague in 1349; his son Philip had died in 1346, so a four-year-old grandson succeeded as Philip I.