Pope Francis writes to the Ecumenical Patriarch Bartholomew, Archbishop of Constantinople, and explains the motivation behind his gift of a portion of the relics of Saint Peter on September 13, 2019. These works “led first to the discovery of the exact burial place of the Apostle and later, in 1952, to the discovery, under the high altar of the Basilica, of a funerary niche attached to a red wall dated to the year 150 and covered with precious graffiti, including one of fundamental importance which reads, “Peter is here.” This contained bones that can quite reasonably be considered those of the Apostle Peter.”