Æthelfrith of Mercia.

About Æthelfrith of Mercia

Æthelfrith was an ealdorman of southern Mercia, who flourished in the last two decades of the ninth century and the first decade of the tenth century. His father is unknown. He was married to Æthelgyth, daughter of Æthelwulf; Æthelwulf is unidentified, but a possible candidate is King Alfred the Great's brother-in-law, the ealdorman of the Gaini who died in 901. Æthelfrith was father to four ealdormen: Æthelstan Half-King, Ælfstan (Mercia), Æthelwald (Kent), and Eadric (Wessex).