John III, Count of Auxerre

John III of Chalon, called the White Knight (c. 1318–1379), was Count of Auxerre and Tonnerre. He served as grand butler of France and was captured in 1356 shortly before Poitiers, freed by the Treaty of Brétigny in 1360.

He inherited Tonnerre in 1360 and Auxerre in 1361. Broken by captivity, he sold Auxerre to King Charles V and died in 1379 under his children's guardianship.