Albertus Parisiensis
Albertus Parisiensis ("fl." 1146 – 1177), also known as Albert of Paris, was a French cantor and composer. He is credited with creating the first known piece of European music for three voices. He was probably born in Estampes in the Arrondissement of Mirande. Albertus served as canon at Notre Dame de Paris from 1127 and as cantor by 1146, a position he held until his death in 1177, the only period of his life which has been documented. He left a number of liturgical books to the cathedral. The only extant piece of his is the "conductus" "Congaudeant  Catholici". The piece was part of the Codex Calixtinus, a work intended as a guide for travelers making the Way of St. James, a pilgrimage to a shrine in Santiago de Compostela. "Congaudeant Catholici" has been recorded by a number of groups devoted to medieval music, including Sequentia, The Rose Ensemble and others.