A lady who killed herself after her husband, Mordaunt, died. Mordaunt had fallen victim to the sorceress Acrasia in the Bower of Bliss.
Sir Guyon was present at Amavia’s suicide, and he vowed to destroy the Bower. Amavia’s infant son, Ruddymane, was taken to safety by Guyon.
Source
The Faerie Queene | Edmund Spenser, 1570-1599