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The ClueFirst in a string of 13 popes (4 letter answer)
NotesThe answer LEOI is uncommon, appearing about once every 500 puzzles.
Related CluesFirst of a string of 13
First of a succession of 13
Pope from 440 to 461
Pope called "The Great"
Predecessor of Pope Hilarius
Saint known as "the Great"
First pope called "the Great"
First pope with the title "the Great"
"Great" fifth-century pope
A pope who became a saint
Pope who became a saint
Sainted fifth-century pope
Sainted pope called "the Great"
Sainted pope after Sixtus III
Start of a string of 13 Popes
Earliest pope to receive the title "the Great"
Fifth-century pope called "the Great"
First pope to be called "the Great"