Tuonetar, Lady of Death, is the female ruler of Tuonela who welcomes the dead – and the living – to the underworld.
Read about Tuonetar and other goddesses in
Women of Might and Magic: Witch Queens, Deities of Death and Nature Goddesses in Finnish Mythology available on Amazon
Read about Finnish gods and goddesses of death of the Finnish underworld in The Finnish Book of the Dead: Gods, Spirits and Creatures of the Underworld in Finnish Mythology and Folklore by Tiina Porthan and Tero Porthan, available on Amazon.
https://www.instagram.com/teroporthan
https://www.deviantart.com/teroporthan
Finnish Mythology Illustrated 