 Arduin ranks as the last domestic "King of Italy" before the accession of Victor Emmanuel II in 1861.Henry's Salian successor Conrad II tried to confirm his dominion against Archbishop Aribert of Milan and other Italian aristocrats ("seniores").While besieging Milan in 1037, he issued the "Constitutio de feudis" in order to secure the support of the "vasvassores" petty gentry, whose fiefs he declared hereditary.