A princess in Greek mythology, Alcestis ("might of the home") was known for her love for her husband. Their story was popularised in Euripides's tragedy Alcestis.
Apollo was, at one point, banned from Olympus for nine years. During this time he served as a shepherd for King Admetus of Pherae in Thessaly. Since Admetus treated Apollo well, the god promised him that when it came time for King Admetus to die, another would be allowed to take his place. Admetus then fell in love with Alcestis. Her father, though, King Pelias would only give permission if Admetus rode a chariot pulled by lions and boars and other wild animals. Apollo helped Admetus accomplish this and the pair wed. When it did indeed come time for Admetus to die, Alcestis agreed to die for him. Heracles arrived in Pherae shortly after her death, and went to Hades to retrieve her. As a result, both of the pair were allowed to live.
