Who did the woman disposed as regent by the King of Mercia married to?
Ælfflæd of Mercia (II) Ælfflæd (fl. 840), was the daughter of Ceolwulf I of Mercia, and later married Wigmund of Mercia. Their son, Wigstan of Mercia, inherited the throne in 840 but, declining the kingship, appointed his mother as regent. She was deposed from this position by Beorhtwulf of Mercia. Ælfflæd should not be confused with her earlier Mercian namesake, Ælfflæd, the daughter of Offa of Mercia.
Venissa Venissa (Genissa, Genvissa, Genuissa), according to Geoffrey of Monmouth's 12th century "Historia Regum Britanniae", was a daughter of the Roman Emperor Claudius, whom he gave in marriage to the British king Arvirargus once he had submitted to Rome.