The anthem came to existence in 1253, along with the canonization of Stanisław Szczepanowski on 8 September in Assisi; Stanisław died a martyr's death on 11 April 1079. The author of the anthem is the first Polish composer in music history known by name, the poet Vincent of Kielcz, OP, a Cracovian canon and chaplain of Bishop Iwo Odrowąż. For a long time he was mistakenly called Vincent of Kielce, and he wrote the hymn to commemorate the canonization of St Stanisław. It is assumed that the first performance of the piece took place on 8 May 1254, during the canonization ceremonies in Kraków.