GUALTERIO, FILIPPO ANTONIO. - Statesman and historian, b. at Orvieto on 6 July 1819, d. at Rome on 10 Feb. 1874.
Known for learned historical and archaeological publications, he was intendant general of the papal army in the Veneto during the campaign of 1848; and the following year, having refused to adhere to the Roman Republic, he moved first to Florence and then to Turin, where he wrote the book Gli ultimi rivolgimenti italiani (Florence, 1851), which brought him wide renown. He carried out important missions on Cavour’s behalf, played a major part in the Tuscan revolution of 1859 and in the Perugian insurrection of the same year, and prepared the annexation of Umbria to the Kingdom of Sardinia. Deputy for Cortona and prefect in several important posts, he was Minister of the Interior in the Menabrea cabinet in the autumn of 1867, not without having assumed grave responsibilities in connection with the movement against the Papal States, which ended at Mentana.
Vittorio Emanuele II appointed him Minister of the Royal Household, and in the exercise of that office he suggested to the sovereign the marriage of the heir apparent to his cousin Margherita. An outspoken opponent of Rattazzi and disliked by Lanza, upon the accession of the Lanza-Sella ministry he withdrew into private life, working for a peaceful solution of the “Roman question.” Disavowed, he lost his reason and died at the age of only fifty-four.