Discover the heartbreaking story of Tristan and Princess Isolde in this video from Ted Ed! When King Mark of Cornwall seeks a bride with golden locks, the only match is Isolde of Ireland. After Tristan slays a dragon to bring peace, a love potion leads to an uncontrollable passion between him and Isolde. Despite their loyalty to King Mark, their love is doomed, ending in tragedy.

Watch the video to see how this legendary love story unfolds.