Chalon became one of the de facto capitals of the kingdom of Burgundy under Guntram, king from 561 to 592, who died here.[5] Guntram also promoted the cult of Saint Marcellus.[6] The bishopric of Chalon-sur-Saône, a suffragan of the Archdiocese of Lyon, was established here in the same century, and a Church Council was held here from 644–655.[7] After the French Revolution, in accordance with the Concordat of 1801, the diocese of Chalon was amalgamated with the diocese of Autun, which gave the name to the new entity.