GoT talk: How good of a swordsman was Ser Arthur Dayne really (realistically)?

Lots of people have asked me how realistic the fight scene at the Tower of Joy in season 6, episode 3 of Game of Thrones is. So finally here is my opinion on the techniques and tactics, based on what I know of historical European swordsmanship. Particular focus on the elephant in the room, Arthur’s dual wielding of two identical swords. ******************************************************************************** My favorite online store for buying swords (worldwide shipping):