It is her military exploits, recorded by chroniclers, which have left an impression. With the support of her brother, she secured some of the most significant victories in battle of the early tenth century. In AD 917 she led troops to reconquer the Viking city of Derby, one of the ‘Five Boroughs of the Danelaw’. She clearly led with the same sense of ‘commitatus’ (loyalty to one’s lord) as male warriors, as the Mercian Chronicle records how she lost four of her thegns at Derby ‘who she particularly loved.’