More info about the name "Drystan"
Drystan is a Welsh variant of Tristan. Tristan originates in Old French language and means "filled with sadness". Tristan is a famous character from the Tristan and Isolde story. Tristan is supposed to pick Isolde in Ireland and bring her to Cornwall so she can marry King Mark. Instead, Tristan and Isolde fall in love which ends up in tragedy. The story has inspired many artists throughout history, including Richard Wagner and his opera Tristan and Isolde, as well as Kevin Reynolds and his 2006 film Tristan & Isolde.