Adalbert Atto, Lombard nobleman

Adalbert Atto 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 Regnum Italicum and the Investiture Controversy in the eleventh and twelfth centuries.

February 13 is the 44th day of the year in the Gregorian calendar; 321 days remain until the end of the year.