Definition

Proper noun 1. Pope Leo I: An Italian pope who led the Roman Catholic Church from 440 to 461 AD. He is historically significant for strengthening papal authority in the Western Roman Empire and for his famous diplomatic encounter with Attila the Hun.

Usage

• St. Leo I is venerated as a saint in the Roman Catholic Church.
• The theological writings of St. Leo I are known as the "Leonine Sacramentary."
• Historians credit St. Leo I with defining the doctrine of the dual nature of Christ.

Advanced Usage

• The Tome of Leo: This refers to a foundational letter written by St. Leo I to the Council of Chalcedon (451 AD), which was instrumental in defining orthodox Christology.
• Leo the Great: This is an alternative and common honorific title for St. Leo I, reflecting his significant impact on the early Church.

Variants and Related Words

• Leo I (The most common abbreviated form)
• Pope Saint Leo the Great (Full honorific title)
• Leonine (adj): Pertaining to or characteristic of Pope Leo I or his writings (e.g., Leonine prayers, Leonine theology).

Synonyms

• Pope Leo the Great
• Leo I

Related Phrases

• To meet one's Attila: An idiomatic allusion to St. Leo I's meeting, meaning to face a seemingly unstoppable adversary with courage and diplomacy.
  • The CEO had to meet her Attila during the hostile takeover negotiations.

Noun

1. Italian pope from 440 to 461 who extended the authority of the papacy to the west and persuaded Attila not to attack Rome (440-461)