Tristan & Isolde is an adaptation of the early medieval Tristan saga in play format. The work is based upon a famous 12th century European legend about a tragic love triangle which utilizes a traditional 3-act format and borrowing salient, dramatic aspects found in the Tristan long poems of Thomas, Gottfried, and Beroul. The play's main plot focuses on the drama of warrior Tristan, his loyalty to his uncle, King Mark of Cornwall, and the events aboard a ship that are to bring Tristan and Irish Princess Isolde together in forbidden love.