Our Lady of Peñafrancia
The Mayon Volcano which towers over the city of Legazpi occupies the center of the shield. The papal cross surmounted by the nimbed dove symbolizes Saint Gregory the Great, the titular of the cathedral. The dove is an allusion to the testimony of Peter the Deacon who said that he oftentimes saw the Holy Ghost in the form of a dove hover above the saint while he dictated his works. The rose symbolizes Our Lady of Peñafrancia to whom all Bicolanos have a great devotion. The lily at the base represents the Immaculate Conception, the patroness of the principal church of Virac, Catanduanes in Catanduanes which belongs to the diocese (until 1974).