Sansfoy, Sansloy, and Sansjoy are three Saracens (an old term that usually meant Muslims or sometimes “pagans” in general) who are brothers and who each oppose the noble Redcross Knight on his journey. Sansfoy is the first of the brothers to be introduced (along with his lady Duessa, who is a witch in disguise). When he is slain, his brothers promise to avenge him, but over the course of the poem, they too are slain, despite often receiving unfair advantages in battle.