owners and traders, and the leadership of the owners was assured. During the kingdom's life, the administrative system of the State changed for domestic and international reasons. Following the defeat of Austria and the Treaty of Pressburg, Napoleon annexed to Italy the territory of former Republic of Venice, as announced on 30 March 1806, and ratified on 1 May. Seven new departments were created, six in the Venetian mainland, and one in Istria (Capodistria), whereas Dalmatia received special institutions led by the General Provider Mr. Dandolo, and maintained its own laws. On 14 July 1807, the government passed a decree that reduced the number of the communes. Following the dissolution of the Papal States, the kingdom was extended along the Adriatic coast, and on 20 April 1808, three new departments were established. The final territorial change came in action on 10 June 1810, when, as announced by Napoleon on previous 28 May, Italy lost Istria and the never fully incorporated Dalmatia, gaining as reward all the southern Tirol up to the city of Bolzano, creating the 24th and last department: Haut Adige. Language and education The language used officially in the Kingdom of Italy was Italian. The French language was used for ceremonies and in all relationships with France. Education was made universal for all children, which was also conducted in Italian. By decree of the governor Vincenzo Dandolo, this was so even in Istria and Dalmatia, where local populations were more heterogeneous. List of departments and districts During its last maximum extension (from 1809 to 1814), the Kingdom lost Istria/Dalmatia but got added Bolzano/Alto Adige and consisted of 24 departments. (capital Sondrio) No districts (capital Verona) (capital Novara) District of Novara, District of Vigevano, District of Domodossola, District of Varallo, District of Arona Alto Adige (capital Trento) (capital Reggio Emilia) (capital Como) District of Como, District of Varese, District of Menaggio, District of Lecco (capital Ferrara) (capital Brescia) District of Brescia, District of Chiari, District of Verolanuova, District of Salò (capital Mantua) District of Mantua, District of Revere, District of Castiglione (capital Milan) District of Milan, District of Pavia, District of Monza, District of Gallarate (capital Modena) (capital Bologna) (capital Cesena) (capital Bergamo) District of Bergamo, District of Treviglio, District of Clusone, District of Breno (capital Cremona) District of Cremona, District of Crema, District of Lodi, District of Casalmaggiore (capital Venice) (capital Vicenza) (capital Padua) (capital Udine) (capital Belluno)