Aelfgifu

If (which is quite an assumption, at this remove) they were the same person, then Aelfgifu or Ealdgyth was, variously (and, one hopes, successively)

• mistress to King Olaf the Saint of Norway
• wife to King Edmund
• paramour and wife to king Eadwig All-Fair
• wife to Aethelred Unraed
• paramour to Canute the Great

After the death of her last husband, the Church is said to have excommunicated her, had her branded, had her hamstrung, and caused her exile to Ireland.