His Holiness Pope Leo I (in Latin Leo) is the Pope number 45 of the Catholic Church.
was born in Toscana, in the current country of Italy.
The Holy Father Leo I initiated his pontificate in the year 440. He succeeded Pope Sixtus III. His papacy lasted for 21 years, ending during the year 461. He was succeeded by Hilarius, who would become the following bishop of Rome.