Pope Stephen IV followed the reign of Leo III.
Pope Celestine III died on January 8th of that year and was succeeded by Pope Innocent III that same day.
Pope Leo III was born in 750.
Pope Stephen IV was chosen after the death of Pope Leo III.
Pope Leo III died on 816-06-12.
He was preceded by Pope Leo IV. Pope Nicholas I was the pope following Benedict III.
charlamagne/chareles the great
Pope John Paul I was elected pope upon the death of Pope Paul VI in 1978. He served only 33 days when he died and was succeeded by Pope John Paul II.
Pope Victor III died of natural causes in 1087. Pope Urban III succeeded him. Pope Victor III became pope in 1085.
No, they are not the same person.
Leo's birth name is not known.
charlemagne
Leo the Great died of natural causes. He was not a martyr.