The city of Braunschweig/Brunswick, Lower Saxony, spent a large part of its history as an independent Duchy or Principality. During these periods, they minted coins depicting a partially clothed man wearing a loincloth of vegetation, holding a tree. This is a consistent theme over large time periods. This character is usually dubbed the "wildman" or "giant" and also appears on the Duchy's coat of arms. I assume this character has a name and backstory, does anyone know? Is there some wildman lore I need to catch up on?