George Maniakes

George Maniakes (Greek: Γεώργιος Μανιάκης; Italian: Giorgio Maniace; died 1043) was a Byzantine army general during the 11th century. He was the catepan of Italy in 1042. He is known as Gyrgir in Scandinavian sagas. He is popularly said to have been extremely tall and well built, almost a giant.

Source: Wikipedia — https://en.wikipedia.org/wiki/George_Maniakes