Groat - William IV of Bavaria

William IV ruled Hainaut during a period of acute dynastic instability, having inherited the county in 1404 only to face persistent challenges over regency arrangements — his mental incapacity was formally recognized, placing actual governance in the hands of regents while coins continued to be struck in his name. The groat series issued under his nominal authority spans the full thirteen years of his reign without any meaningful administrative interruption from William himself.

Hainaut#136 is among the lighter examples of the regional groat tradition, reflecting broader monetary debasement pressures affecting the Low Countries in the early fifteenth century.