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Adalbert Atto of Canossa
1st Count of Canossa
Years: 915 - 988
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.
