His Successor, Pope John IV, was an even stronger opponent of the practice.[26] Finally, following the death of Heraclius in 641, both the subsequent Emperors Constantine III and Constans II were of orthodox practice and appeared to have removed the Ecthesis as the official imperial doctrine, by request of Pope John IV.[27] This effectively crushed the remaining foundation of Monothelitism doctrine as Orthodox teachings appeared to quickly restore back throughout the Empire. By 680, all Monothelite support had faded and Orthodox belief was in full order again.