689) was a duchess consort of Thuringia by her respective marriages to brothers Hedan I and Gozbert [de].
Kilian then demanded that Gozbert divorce Geilana, since their marriage was not legal in accordance to the Christian view of kinship.
[2] When Gozbert left for military campaign warfare, Gayala had Kilian assassinated in Gozbert's absence with the support of the pagan courtiers, who resented Killian's ambition to control their lives.
According to the hagiography, Geilana became mentally ill after the murder.
A pagan reaction resulted in the death of Gozberth shortly after and forced Hedan II to flee.