It's one of the oldest and most common stories in the world; boy meets girl, boy and girl fall in love, but girl is already engaged/married to someone else.
Half the stories in the world are based on this theme.
The way it sounds Isolde...
Romance and Forbidden Love
Wagner's opera entitled "Tristan and Isolde" is about a young man who falls in love with the woman promised to marry the king.
Yes he did.
Richard Wagner
Tristan und Isolde was created in 1865.
The way it sounds Isolde...
The cast of Tristan und Isolde - 1970 includes: Claude Heater as Tristan Jacqueline van Quaille as Isolde
King Mark
Isolde, from Tristan und Isolde
The cast of Tristan Und Isolde - 2008 includes: Robert Gambill as Tristan Katarina Kameus as Brangane Bo Skovhus as Kurwenal Nina Stemme as Isolde
Tristan's love was Iseult , also called Isolde
Isolde, from Tristan und Isolde
The cast of Tristan und Isolde - 1999 includes: Jane Eaglen as Isolde Ben Heppner as Tristan James Levine as Himself - Conducted by Metropolitan Opera Orchestra as Themselves - Orchestra
Tristan, or Triste, depending.
Romance and Forbidden Love
The cast of Tristan und Isolde - 1995 includes: Poul Elming as Melot Siegfried Jerusalem as Tristan Peter Maus as Ein Hirt Waltraud Meier as Isolde Falk Struckmann as Kurwenal