joseph and caesar's hamon coach, revealed to be the former's mother elizabeth joestar who was saved by erina on the day that jonathan died. elizabeth was raised by the hamon master straizo and eventually married george joestar ii. but she avenged her husband's death by one of dio's surviving zombies who infiltrated the royal airforce, elizabeth was forced to go into hiding in italy under an alias while becoming the current guardian of the red stone of aja.