Pope Leo XIV adopted a modified version of his coat of arms as cardinal. there are two main symbols:
The Fleur-de-lis: Represents the Virgin Mary, reflecting his great devotion to Mary and connecting him to a tradition of Marian devotion.
The Heart Pierced by an Arrow: this symbol, inspired by Saint Augustine represents his Augustinian roots and his desire for unity and communion within the Church.
Motto: “In Illo Uno Unum” (“In the One, we are one”) also reflects his Augustinian tradition and emphasis on unity and communion. This motto is taken from Saint Augustine’s Exposition on Psalm 127, highlighting the unity of Christians in Christ.
