Probably a Medieval servant who was in an underground latern, fell into a river of feces and urine and drowned.
I can imagine in Heaven a Crusader says, “I died fighting a hundred men, with four arrows in my chest.” A Priest, “I died protecting an altar piece from Vikings as they burned me alive,” and when they turn to the servant, “I died by slipping onto a river of poop and urine and drowned.”