Reginald I of Burgundy

Reginald I (986–1057), second Count of Burgundy, was the son of Otto-William and Ermentrude of Roucy. In 1016 he married Alice of Normandy and succeeded his father in 1026. In 1027 the bishop-count of Auxerre captured him at Chalon; his father-in-law's Norman troops freed him.

In the succession war of 1032–1034 he backed Odo II of Blois against Emperor Conrad II, and defeat left the county under imperial suzerainty. The salt pans of Salins and Jura trade routes enriched his rule. He died in 1057, succeeded by his son William I.