Roman Catholic Diocese of Helena was formed to serve eastern Montana. The seat of the diocese is in the Cathedral of St. Helena in the state capital of Helena. It was completed in 1914. The bishops of the Diocese of Helena and their years of service: 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,
Jean III de Grailly, captal de Buch was a prisoner of the French since 1372. He had refused his freedom as it would have meant taking up arms against the king of England, which he swore never to do. His personal allegiance to Prince Edward of England, the Black Prince, was so strong that upon hearing of his death, he lost all resolve, refused food and died a few days later. Since he left no heirs from his marriage to Rose d' Albret, his uncle, Archambaud, Count of Foix and of Bigorre took the title Captal de Buch, which passed to his descendants the Counts of Foix.