Historical Events
- Feb 22 Battle of Cassel; Robert I the Frisian defeats Arnulf III/I
- Apr 16 Bari falls to Robert Guiscard's Norman forces, ending Byzantine rule in Italy
- Aug 26 Battle of Manzikert: Seljuq Turks led by sultan Alp Arslan beat and capture Byzantine Emperor Romanos IV Diogenes
World Leaders in 1071
Henry IVFamous People Who Died in 1071
- Feb 22 Arnulf III, earl of Flanders/Hainault (Arnulf I), dies in battle