A month later, he became Duke of Savoy on the death of his father, but this was a nearly empty honour, as the vast majority of his hereditary lands had been occupied and administered by the French since 1536.
O lună mai târziu el a devenit Duce de Savoia, la moartea tatălui său, dar acest lucru a fost doar onorific, marea majoritate a teritoriilor fiind ocupate și administrate de către francezi din 1536.