The Litany of the Blessed Virgin Mary is a Marian litany originally approved in 1587 by Pope Sixtus V. It is also known as the Litany of Loreto, for its first-known place of origin, the Shrine of Our Lady of Loreto (Italy), where its usage was recorded as early as 1558.
The litany contains many of the titles used formally and informally for the Virgin Mary, and would often be recited as a call and response chant in a group setting.
The litany is called Litaniae lauretanae in Latin. Many classical composers, like Wolfgang Amadeus Mozart have written Litaniae lauretanae.
It was approved by the Catholic Church in 1587 for public use by Pope Sixtus V.