The Pursuit of Tristan and Iseult 

The third part of the Epic Cornish Romance of Tristan and Isolde, which I have called "The pursuit of Tristan and Iseult"
The first part, "The Morholt out of Ireland" which I told on this channel over a year ago, can be found here:
• The Morholt out of Ire...
Tristan and Iseult (or Tristram and Isolde) is a medieval chivalric romance of a similar courtly tradition of the legends of King Arthur and the Knights of the round table.
Like those stories, the story of Tristan and Isolde comes in many versions and is most likely based on earlier Celtic folklore in the oral storytelling tradition. It features love potions, battles with giants and dragons, Irish magic, pirates and witches and a tragic end.
The tale has parallels in the Welsh Mabinogion as well as the Irish myth in the Finn cycle, 'the pursuit of Diarmuid and Grania'.
It also has parallels with Shakespeare's Romeo and Juliet as well as Pyramus and Thisbe.
It comes in many versions, by Thomas of Britain and Joseph Béroul in the 13th Century, to Richard Wagner's opera, to a great version by storyteller Martin Shaw, which I borrow from a little here.