Adalbert Atto of Canossa

  Notater:

Adalbert Atto (or Adalberto Azzo) (died 13 February 988) was the first Count of Canossa and founder of that noble house which eventually was to play a determinant rôle in the political settling of Italy and the Investiture Controversy in the eleventh and twelfth centuries.

Adalbert blev gift med Hildegard.