Wigmund, or Wimund, of Mercia predeased his father, Wiglaf of Mercia (d.839/840). His son and heir, Wystan, or Wistan, of Mercia then inherited the Mercian throne when Wiglaf died ... but declined, and even wanted to make his mother Ælfflæd of Mercia, regent. Instead, she was thwarted by Berhtwulf by 841.
Why privatize someone from the 8th century? Share your information. Mucel married Osburga Ostacsdottir. They had a kid Aethelred of the Gaini, who's daughter married Alfred the Great. Now is that so hard???