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
Governor of Saint Helena office is located within The Castle, along with the office of the Chief Secretary, who runs the day-to-day administrative part of the government. Before 2009 the territory was known as "Saint Helena", of which Ascension and Tristan da Cuhna were dependencies. A new constitution which came into force in 2009 changed the name of the territory to "Saint Helena, Ascension and Tristan da Cunha"; however, the Governor's title remained as the "Governor of Saint Helena". The Governor of Saint Helena nonetheless is the British monarch's representative across the territory. Under the St Helena, Ascension and Tristan da Cunha Constitution Order