Ceolwulf I was the King of Mercia, a kingdom of Anglo-Saxon England, from 821 until his deposition in 823. He was the brother of Coenwulf, his predecessor, and was deposed by Beornwulf. Wikipedia
Died: 823 AD
Grandchildren: Ceolwulf II of Mercia, Wigstan, Ælfheah (?), and more
Parents: Cuthberht of Mercia
Nieces: Cwenthryth and Burgenhild
Siblings: Coenwulf of Mercia
Reign: 821–823