 It is from this chapel that the reliquary with the corporal is carried in religious processions through the town on the Feast of Corpus Christi.The chapel is two bays deep and covered with quadripartite vaults.It is closed off by a wrought iron gate, made between 1355 and 1362 by Matteo di Ugolino da Bologna and finished by Giovanni de Micheluccio da Orvieto in 1364.