Who composed agnus dei?

The Agnus Dei is a part of the Catholic Mass, and therefore no single composer can be credited with its creation. It's a traditional liturgical chant that has been sung in various forms throughout history, with its origins dating back to the early Church.

Here's a breakdown:

* Text: The words "Agnus Dei" (Latin for "Lamb of God") are part of the biblical story of Jesus as the sacrificial lamb who takes away the sins of the world.

* Music: The melody of the Agnus Dei has evolved over time, with many composers adding their own interpretations and arrangements.

* Notable examples:

* Gregorian Chant: The earliest known form of the Agnus Dei is in Gregorian Chant, dating back to the Middle Ages.

* Renaissance and Baroque periods: Composers like Palestrina, Victoria, Bach, and Mozart all wrote their own settings of the Agnus Dei, often as part of larger Masses.

* Modern composers: Many contemporary composers have also written their own versions of the Agnus Dei, reflecting their unique styles.

In short, while many composers have contributed to the musical history of the Agnus Dei, it's fundamentally a piece of liturgical music with roots in the early Church and evolving over time.