 In return for this service, the King confirmed and strengthened the Bishop's civil control over the city and area, even against his officials and feudal vassals.In 974, the Emperor Otto II granted the Bishops of Bergamo civil jurisdiction over not only the city of Bergamo, and the suburbs to a distance of three miles, but also the Valle Seriate and other lands.Arnulfus, the successor of Bishop Atto, was the son of Vido (Guido) of the area called Landriano, in the territory of Milan.