Leo 'stopped' being pope when he died on November 10, 461.
No, Pope S. Leo the Great was not married.
Leo the Great became pope on September 29, 440.
Some popes from the fifth century were St. Anastasius I, St. Innocent I, St. Zosimus, and St. Boniface I. Some additional popes from the fifth century were St. Celestine I, St. Sixtus III, and St. Leo I.
If this is in reference to the 13 Leos, the first was Pope Leo I, the Great who ruled the Church from 440 to 461.
Pope Saint Leo the Great is not a patron saint.
charlamagne/chareles the great
Attila was a barbarian invader and Pope Leo convinced him not to sack Rome.
Pope St. Leo I, the Great, in the 5th century.
Three popes have had the title of Great:Pope Leo the GreatPope Gregory the GreatPope Nicholas the Great
Leo I aka Saint Leo aka Leo the Great
Leo the Great died of natural causes. He was not a martyr.
Pope Leo the Great convinced Attila the Hun to not invade Rome.