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 Moscow child of Ivan III, Grand Prince of Moscow, and his second wife Sophia Palaiologina, niece of the last Byzantine Emperor Constantine XI Palaiologos. Helena was an older sister of Grand Prince of Moscow Vasili III of Russia. Little is known about Helena's childhood in Moscow, but it is known that she was literate and very attractive. When Helena was eight, Jan Zabrzeziński and Ivan Yuryevich Patrikeyev discussed a marriage between Helena and one of the sons of the Polish King Casimir IV Jagiellon. At the time Poland was looking for allies in the Polish–Ottoman War (1484–1504), which broke out after