Ser Torwyn Astralor
Importance:
A former knight of Ederia found drinking in a tavern in Colline, once famous for his tournament victories. He walked away from knighthood after learning how the Green Knight died - slain by Soleilan knights who had mistranslated an ancient text and thought it an honour. He rides after the heirs to apologise and stays, and it is Torwyn who finally speaks the oath over Marik and dubs him the Green Knight.
Since then
A thousand years on, everything we did just faded away. So what was the point of any of it? I am still deciding whether trying is the answer.