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Am I being executed because I'm a maniac?
I found the solution to the clues about Sir Erseyd.
Swedish King Charles XII died under mysterious circumstances during the Great Northern War - The Swedish power metal band Sabaton released an album in 2012 called "Carolus Rex," dedicated to the king's military campaigns of 1700-1721 - this album includes the song "The Lion from the North" - Sir Erseyd's personal banner depicts a golden lion.
"Golden Eggs" is a Spanish film by Bigas Luna - Bigas Luna was a member of the jury at the Venice Film Festival - the main prize of this festival is the "Golden Lion" - a golden lion is depicted on Sir Erseyd's personal banner.