Adalbert II (c. 875–915), called the Rich, son and successor of Adalbert I of Tuscany, and grandson of Boniface II, is much concerned in the troubles of Lombardy, at a time when so many princes are contending for the wreckage of the Carolingian Empire.

Before his father dies in 884 or 886, he is accredited the title of "count".

He inherits from his father the titles of count and duke of Lucca and margrave of Tuscany.

Adalbert II dies on 10 or 15 September 915 and is buried in the cathedral of Lucca.

His widow Bertha is regent for their young son Guy.