Each day Wikipedia features one of their onine articles, and yesterday they chose a very interesting one about the aetheling Aethelwold, the nephew of King Alfred, and the son of the King's elder brother and predecessor King Aethelred I. After his uncle's death he revolted against King Edward the Elder at the beginning of his reign, allied with forces in the Danelaw where he was acknowledged as King, and was killed in battle in 902 or 903.
A coin issued by King Alwaldus - Æthelwold ætheling - in the Danelaw
Image: Wikimedia commons