Roman Catholic Diocese of Helena Roman Catholic Diocese of Helena The Diocese of Helena () is the Catholic diocese for western Montana with its cathedral located in Helena, the state capital. The diocese was erected from the year-old Vicarate of Montana on March 7, 1884, while Montana was still a territory. The diocese is a suffragan of the Archdiocese of Portland, which encompasses Oregon, Idaho, and Montana. Before becoming a diocese, this was the Vicariate of Montana (covering the whole territory and then state of Montana). For its first twenty years, the diocese served all of Montana. In 1904 the new Diocese of Great Falls-Billings
Sarcophagi of Helena and Constantina Sarcophagi of Helena and Constantina The Sarcophagi of Helena and Constantina are two fourth century porphyry sarcophagi in Rome. The Sarcophagus of Helena is the red porphyry coffin in which Saint Helena, the mother of emperor Constantine the Great, was buried (died 329). The coffin, deprived of it contents for centuries, was removed from the Mausoleum of Helena at Tor Pignatarra, just outside the walled city of Rome, and ultimately moved to the Vatican museums in the 18th century, and now is in the Sala a Croce Greca of the Pio-Clementine Vatican Museum. The Sarcophagus is carved in the Egyptian