Papal States: Heads of State: 1800-1809 Legati a Latere 22 Jun 1800 - 3 Jul 1800 Giovanni Francesco Albani 22 Jun 1800 - 3 Jul 1800 Aurelio Roverella 22 Jun 1800 - 3 Jul 1800 Giulio Maria della Somaglia [1] Sommo Pontefice 3 Jul 1800 - 10 Jun 1809 Pius VII :: Pio VII [2] name: Barnaba Nicolò Maria Luigi Chiaramonti (from 1785 cardinal Chiaramonti); in religion: Gregorio elected: 14 Mar 1800; installed: 21 Mar 1800 [1] Baptized: Giulio Cesare. [2] Arrived to Rome and assumed the temporal government of the Papal States on 3 Jul 1800. Last updated on: 29 Nov 2023; URL: www.archontology.org/nations/italy/papal_states/00_1800_09s.php