Leo I

1 9.6

Pope from 440 to 461 who convinces Attila the Hun not to attack Rome

proper noun

: León I

Leo I is remembered for negotiating with Attila the Hun and preventing the sack of Rome.

Examples

Many historians regard Leo I as one of the most influential early popes.
The feast day of Leo I is celebrated on November 10th in the Catholic Church.
Pope Leo I was a significant figure in the history of the Catholic Church.
Did Leo I really persuade Attila the Hun?
Leo I is famous for persuading Attila the Hun to spare the city of Rome during his invasion.
Many clergy consider Leo I a pivotal figure in establishing the authority of the papacy.
The teachings of Leo I significantly shaped Christian doctrine in the early Church.

Synonyms

Leo the Great

vsLeo I

1 7.4

A pope in the 400s who persuaded Attila the Hun not to attack Rome

is the same historical figure but used as the formal papal name

St. Leo I

vsLeo I

9.1

An Italian pope in the 400s who strengthened the pope's power and persuaded Attila not to attack Rome

is the same person but highlights sainthood and national origin

Surface Forms

Leo I main

Morphology

Leo + I

This is a proper-name label (name + ordinal) referring to a specific historical person; knowing the constituents 'Leo' (a name) and 'I' (a numeral) does not let a B1 learner infer the referent is a pope from 440–461 or his historical role. While the 'I' may signal 'the first' in some languages, the specific identity and meaning require world-knowledge rather than compositional decoding, so the expression is not transparently derivable from its parts.

Etymology

Leo I was a pope called Leo the Great. One famous story says he met Attila the Hun, stood before him in his robes and spoke so strongly that Attila turned away, so Leo is remembered as a powerful leader who helped 'save' Rome.