The canonization of Carlo Acutis, the Catholic Church’s first millennial saint, will take place on September 7, Pope Leo XIV has announced.

Blessed Carlo Acutis and Blessed Pier Giorgio Frassati, two young Catholics beloved for their vibrant faith and witness to holiness, will be canonized on Sept. 7.

Acutis was 15 when he died in northern Italy in 2006, after a short bout with leukemia. He has become enormously popular especially among young Catholics who have been flocking to his tomb in Assisi.