Альбрехт Медведь
According to tradition, the "Märkischer Adler" ('Marcher eagle'), or red eagle of the March of Brandenburg, was adopted by Margrave Gero in the 10th century. Gustav A. Seyler states that the Ascanian Albert the Bear was the originator. He divided his territory among his children, thereby creating the territories which would later become Anhalt, Brandenburg, and Meissen.