+die xxi iunii MDCXXIII inventum corpus S. Luciferi ar[chiepisco]pi Cal[aritani] in capellam hanc eius nomini per ill[ustrem] d[ominum] Franc[iscum] Desquivel Ar[chiepisco]pu[m] Cal[aritanum] dicatam translatum fuit die xxi [M]aii MDCXXVIOn the 21st day of June 1623 was found the body of S. Lucifer archbishop of Cagliari, transferred to this chapel, dedicated to his name by the illustrious Don Francesco d'Esquivel archbishop of Cagliari, on the 21st day of May 1626.
Lucifer was no martyr, and he was a questionable sort of Catholic saint, when you consider that he inspired a sect, the Luciferians, who were castigated as heretics by Jerome. What is most interesting here is the (literal) rediscovery and reuse by seventeenth-century archbishops of a predecessor who might have been thought quite problematic. I wonder how far their factual slips were based on ignorance, and how far they were calculated. It would be a fine subject for a historian who combined an expertise in the history of patristic scholarship and seventeenth-century Sardinia!
The church of Cagliari also commemorated several doublets of Lucifer: the crypt contains wall memorials covering the remains of S. Lucifer the Presbyter, and S. Lucifera, both martyrs of Cagliari. Whether Lucifer was a common name in Cagliari, or whether this is a neat illustration of how catholic cult despised birth control when it came to engendering martyrs, I leave to readers to decide.