Siegfried Schtauffen (ジークフリート・シュタウフェン Jīkufurīto Shutaufen?, German: Siegfried Schützen) is one of the most central characters of the Soul series and the main protagonist in most of its installments. He is a mainstay of the Soulcalibur series and one of the most iconic characters in the franchise.
Vote which fictional character would naturally fit in-universe with a big-named franchise! No time-travel, no interdimensional crap, no "Pooh's Adventures", they would just exist in-universe.