POPE GREGORY XIII – HIS ORDINATIONS AS SUBDEACON, DEACON, PRIEST, and BISHOP
My friend and research colleague Angelo Tavazza has made an excellent discovery. In reviewing the inventory of the Archivio Boncompagni-Ludovisi of the Vatican Secret Archives, he found references to the ordinations of Ugo Boncompagni, the future Pope Gregory XIII, as subdeacon, deacon, priest, and bishop. He obtained scans of the certificates of ordination of Ugo Boncompagni to the three major orders and of his consecration as bishop.
In 2008, the inventory of the Boncompagni-Ludovisi collection kept in the Vatican Secret Archives was published. [Collectanea Archivi Vaticani 63] Archivio Boncompagni Ludovisi : inventario. Vol 3 : (bb. 564-712). Città del Vaticano Archivio Segreto Vaticano, 2008. p. 74.
folder 2 (ff 3-5) the certificate of ordination of Ugo Boncompagni as subdeacon, deacon, and priest;