Who was the composer of gregorian chant?

There is no single composer credited for Gregorian chant, as it developed and evolved over several centuries. It originated from the liturgical practices of the Catholic Church in western Europe, and it was compiled from various sources, including traditional hymns, psalms, and antiphons. The development of Gregorian chant was primarily driven by the monks of the Benedictine order, particularly during the reign of Pope Gregory I in the 6th century. Pope Gregory is often attributed with organizing and standardizing the collection of chants, but he did not personally compose them.