Originally named S. Croce di Campestrino, it was the first church of Belluno’s Christian community. Originally erected outside the urban Roman perimeter, it stilI maintains the floor plan of a Greek cross, from the 6th century. Next to the church there was a hospice that, from 1184 until 1793, served also as a centre for the lepers. It was reconstructed in 1358 and 1631.