Wilhelm (6 July 1785 –2 July 1823 ) Due to mental illness, Wilhelm was duke in name only, with his cousin Peter, Prince-Bishop of Lübeck, acting as regent throughout his entire reign.[6]
November 19 – Carl Maria von Weber becomes engaged to soprano Caroline Brandt.
Ludwig van Beethoven : To the distant beloved op. 98 (song cycle); Der Mann von Wort - Lied Op. 99; Piano Sonata No. 28 op.101 (completed in 1816, premiered in 1817)
Johann Simon Mayr : 6 cantatas ( Egeria , Annibale , Lo spavento , La tempesta , Le Festivals d'Ercole , L'armonia )
Carl Maria von Weber : Piano Sonata No. 2 in A flat major op. 39; Piano Sonata No. 3 in D minor, Op. 49; Grand Duo concertant for clarinet and piano in E flat major op.48 (chamber music)
Franz Bopp – Über das Conjugationssystem der Sanskritsprache in Vergleichung mit jenem der griechischen, lateinischen, persischen und germanischen Sprache (On the Conjugation System of Sanskrit in comparison with that of Greek, Latin, Persian and Germanic)
^J. Morley, "The Bauhaus Effect," in Social Utopias of the Twenties (Germany: Müller Bushmann press, 1995), 11.
^Gerhard Schildt: Von der Restauration zur Reichsgründungszeit, in Horst-Rüdiger Jarck / Gerhard Schildt (eds.), Die Braunschweigische Landesgeschichte. Jahrtausendrückblick einer Region, Braunschweig 2000, pp. 753–766.
^Albinus, Robert (1985). Lexikon der Stadt Königsberg Pr. und Umgebung (in German). Leer: Verlag Gerhard Rautenberg. p. 371. ISBN3-7921-0320-6.
^Bille-Hansen, A. C.; Holck, Harald, eds. (1829) [1st pub.:1801]. Kongelig Dansk Hof- og Stats-Calender for Aaret 1829 [Court and State Calendar of the Kingdom of Denmark for the Year 1829] (PDF). Kongelig Dansk Hof- og Statskalender (in Danish). Copenhagen: J.H. Schultz A.-S. Universitetsbogtrykkeri. pp. 5, 8, 51. Retrieved 16 September 2019 – via da:DIS Danmark.
^Anemüller, Bernhard (1875). "Abicht, Johann Heinrich". In: Allgemeine Deutsche Biographie. Band 1. Leipzig: Duncker & Humblot. S. 21 (German).