Wagner composer an opera titled Tristan and isolde. the was about?

Richard Wagner's opera "Tristan und Isolde" is a tragic love story set in the Middle Ages. The opera tells the story of Tristan, a knight of King Mark of Cornwall, and Isolde, the princess of Ireland. Tristan and Isolde fall in love after drinking a love potion, but their love is forbidden, and they must face many obstacles to be together. The opera is known for its beautiful music and its complex and passionate characters.