Traidans del Plessiei; Triadan del Plaissee, Triadan del Plaissiet, Triadan del Plesse, Triadan do Plessie; Tridam du Plessis, Tridians del Plessiei

A knight from the Hedged Manor defeated in combat by Yvain during the latter’s quest to slay Malduit the Giant. As a condition of Tridan’s surrender, Yvain forced him to deliver a challenge to Malduit that Yvain had taken his shield.