Dearg Due (pronounced DAH-ruhg DU-ah / DAH-ruh-guh DU-ah) is a vampire like entity in Irish folklore. Dearg-due, an Irish name meaning “red bloodsucker,” is a female demon that seduces men and then drains them of their blood.
Celtic Legend[]
According to the Celtic legend, an Irish woman who was known throughout the country for her beauty fell in love with a local peasant, which was unacceptable to her father. Her father forced her into an arranged marriage with a rich man who treated her terribly, and eventually, she commits suicide. She was buried near Strongbow’s Tree in Waterford, and one night, she rose from her grave to seek revenge on her father and husband, sucking their blood until they dropped dead.