sentences:  Adalbert Atto of Canossa
  
  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 role in the political settling of Italy and the Investiture Controversy in the eleventh and twelfth centuries.Adalbert first appears in sources as a son of Sigifred of Lucca.