it was annexed to Bavaria only in 1920. Ostheim was added to Bavaria in 1945. In the first half of the 20th. century, the initial terminology of Kreis and Bezirk gave way to Regierungsbezirk and Landkreis. Statistics Area = 75,865 km2 (1900) Population = 3,707,966 (1818) / 4,370,977 (1840) / 6,176,057 (1900) / 6,524,372 (1910) Government districts (Kreise) (1808–1817): Altmühlkreis (1808–1810 / dissolved) Eisackkreis (1808–1810 / ceded to Italy) Etschkreis (1808–1810 / ceded to Italy) Illerkreis (1808–1817 / dissolved) Innkreis (1808–1814 / ceded to Austria) Isarkreis (1808–1838) Lechkreis (1808–1810 / dissolved) Mainkreis (1808–1838) Naabkreis (1808–1810 / dissolved) Oberdonaukreis (1808–1838) Pegnitzkreis (1808–1810 / dissolved) Regenkreis (1808–1838) Rezatkreis (1808–1838) Salzachkreis (1810–1816 / ceded to Austria) Unterdonaukreis (1808–1838) Government districts (Kreise) (1816/17–1838) Isarkreis (transformed into Upper Bavaria) Obermainkreis (transformed into Upper Franconia) Oberdonaukreis (transformed into Swabia) Regenkreis (transformed into Upper Palatinate) Rezatkreis (transformed into Middle Franconia) Unterdonaukreis (transformed into Lower Bavaria) Untermainkreis (transformed into Lower Franconia) Rheinkreis (transformed into Palatinate) Government districts (Kreise) (1838–1918): Upper Bavaria () (Capital: Munich) Upper Franconia () (Capital: Bayreuth) Swabia () (Capital: Augsburg) Upper Palatinate () (Capital: Regensburg) Middle Franconia () (Capital: Ansbach) Lower Bavaria () (Capital: Landshut) Lower Franconia () (Capital: Würzburg) Palatinate () (Capital: Speyer) See also King of Bavaria List of Minister-Presidents of Bavaria Bavaria History of Bavaria History of Germany References External links Catholic Encyclopedia: The Kingdom of Bavaria Guide to Bavaria: The Kingdom of Bavaria Kingdom of Bavaria Former kingdoms States of the German Empire States of the German Confederation States of the Confederation of the Rhine . Kingdom of Bavaria Kingdom of Bavaria Kingdom of Bavaria Kingdom of Bavaria Kingdom of Bavaria