The daughter of Prester John, she eloped and had a child with Tom a’Lincoln, Arthur’s son, but she scorned Tom when she discovered he was an illegitimate child. She abandoned Tom and her new lover, a sultan, murdered him.
Her son, known as the Black Knight, avenged his father’s death by slaying Anglitora and her lover.
Source
Tom a Lincolne | Richard Johnson, 1599-1607