sentences:  The land of the duchy is today a part of Italy.The county of Aosta was originally ruled by the bishops of Aosta in the 10th and early 11th centuries.Upon the death of Bishop Anselm in 1026, however, Conrad the Salic ensured that the secular powers of the important Alpine territory passed to the bishop's brother-in-law, his ally Humbert the White-handed, rather than remaining tied to the diocese, which fell to Anselm's unfriendly nephew Burchard.