In Gottfried's Tristan, Brangien is the maidservant of Iseult and beautiful in her own right. When Iseult was on her way to Mark, Iseult's mother gave Brangien and Gouvernail a love potion to administer to the couple. Unfortunately, owing to a mistake or guile, Tristan and Iseult drank it. On the night of her wedding, Iseult substituted Brangien for herself so Mark would not guess she had already lain with Tristan. Fearing discovery, Iseult tried to have Brangien murdered to ensure her silence, but the attempt was unsuccessful and Iseult repented of it. Brangien later had an affair with Kaherdin, son of King Hoel of Brittany.