Talk:Butcher of Blaviken/@comment-85.221.135.208-20150601011226

It's also mentioned in the game (Witcher 3) during one of the final quests (when Geralt accompanies Ciri to various locations) - this recognition occurs in a portside tavern, where it can be used to scare off some thugs. (interestingly, they become very respectful after the nickname is mentioned)