sentences:  When Bishop Pietro Arborio Gattinara died in January 1809, the Emperor of the French, Napoleon I, nominated as bishop of Asti François-André Dejean, but he could not obtain his bulls from Rome, and then Pius VII became a prisoner of the French government.Dejean served as Vicar Capitular, though without proper credentials, governing the Church of Asti and Alba until 1814.With the end of the French Empire, Dejean was expelled from Asti, which he had been holding illegitimately; he was sent to Ivrea, where he remained for a year before being repatriated to France, where he died in 1820.