Alberto Azzo II (January/February 997 in Modena – 20 August 1097 in Modena), Margrave of Milan, and Liguria, Count of Gavello, Padua, Rovigo, Lunigiana, Monselice, and Montagnana, was a powerful nobleman in the Holy Roman Empire.

[2] He inherited his father's offices around 1029, and continually increased his properties in northern Italy.

In the Investiture Controversy between Henry IV, Holy Roman Emperor, and Pope Gregory VII, Azzo attempted to mediate,[3] but later he joined the side of the pope.

[4] Azzo's son with Chuniza, Welf, moved first to Carinthia and then to Bavaria, giving rise to one of the most important families in European history, the Guelphs.

[7] He died in August 1097 at the monastery of Vangadizza (Badia Polesine), where he was buried.