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
Helena of Adiabene twenty ells. The rabbis used to go in and out and make no remark about it'." Helena moved to Jerusalem, where she is buried in the pyramidal tomb which she had constructed during her lifetime, three stadia north of Jerusalem. The catacombs are known as "Tombs of the Kings." A sarcophagus with the inscription "Sara Malkatha", in Hebrew and Syriac, found in the nineteenth century by Louis Felicien de Saulcy, is supposed to be that of Helena. The royal palace of Queen Helena is believed to have been discovered by archaeologist Doron Ben-Ami during excavations in the City of David