Through marriage to Adelaide, the heiress of Ulric Manfred II, he also administered the march of Susa from around 1046 until his death.
[2] Through Humbert's service to the German emperors, the family was granted the counties of Maurienne, Aosta and Sapaudia (Savoy), all at the expense of local bishops or archbishops.
[4] They had: Through his marriage to Adelaide, Otto obtained extensive possessions in northern Italy.
Thereafter, the House of Savoy concentrated its expansion efforts towards Italy instead of north of the Alps as it had done before.
The archbishop of Vienne, Léger, who had sole right of minting in the region, complained to Pope Leo IX, so Otto forbade further coining at Aiguebelle.