1815 in Germany

Kingdoms

• Kingdom of Prussia
  • Monarch – Frederick William III of Prussia (16 November 1797 – 7 June 1840)^[1]
• Kingdom of Bavaria
  • Maximilian I (1 January 1806 – 13 October 1825)
• Kingdom of Saxony
  • Frederick Augustus I (20 December 1806 – 5 May 1827)
• Kingdom of Hanover
  • George III (25 October 1760 –29 January 1820)
• Kingdom of Württemberg
  • Frederick I (22 December 1797 – 30 October 1816)

Grand Duchies

• Grand Duke of Baden
  • Charles 10 June 1811 – 8 December 1818^[2]
• Grand Duke of Hesse
  • Louis I (14 August 1806 – 6 April 1830)^[3]
• Grand Duke of Mecklenburg-Schwerin
  • Frederick Francis I– (24 April 1785 – 1 February 1837)^[3]
• Grand Duke of Mecklenburg-Strelitz
  • Charles II (2 June 1794 – 6 November 1816)^[4]
• Grand Duke of Oldenburg
  • 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.^[5]
  • Peter I (2 July 1823 - 21 May 1829)^[5]
• Grand Duke of Saxe-Weimar-Eisenach
  • Karl August (1809–1815)

Principalities

• Schaumburg-Lippe
  • George William (13 February 1787 - 1860)
• Schwarzburg-Rudolstadt
  • Friedrich Günther (28 April 1807 - 28 June 1867)^[6]
• Schwarzburg-Sondershausen
  • Günther Friedrich Karl I (14 October 1794 - 19 August 1835)
• Principality of Lippe
  • Leopold II (5 November 1802 - 1 January 1851)^[7]
• Principality of Reuss-Greiz
  • Heinrich XIII (28 June 1800-29 January 1817)
• Waldeck and Pyrmont
  • George II (9 September 1813 - 15 May 1845)

Duchies

• Duke of Anhalt-Dessau
  • Leopold III (16 December 1751 – 9 August 1817)^[8]
• Duke of Brunswick
  • Frederick William (16 October 1806 – 16 June 1815)^[9]
  • Charles II (16 June 1815 – 9 September 1830)^[9]
• Duke of Saxe-Altenburg
  • Duke of Saxe-Hildburghausen (1780–1826) - Frederick^[3]
• Duke of Saxe-Coburg and Gotha
  • Ernest I (9 December 1806 – 12 November 1826)^[10]
• Duke of Saxe-Meiningen
  • Bernhard II (24 December 1803–20 September 1866)^[11]
• Duke of Schleswig-Holstein-Sonderburg-Beck
  • Frederick Charles Louis (24 February 1775 – 25 March 1816)^[12]

• 3 January – Austria, Britain, and Bourbon-restored France form a secret defensive alliance treaty against Prussia and Russia.

• 9 June – The Final Act of the Congress of Vienna is signed: A new European political situation is set. The German Confederation and Congress Poland are created, and the neutrality of Switzerland is guaranteed. Also, Luxembourg declares independence from the French Empire.
• 16 June-Napoleonic Wars – Battle of Ligny: Napoleon defeats a Prussian army under Gebhard Leberecht von Blücher.
• 2 August – Napoleonic Wars: Representatives of the United Kingdom, Austria, Russia and Prussia sign a convention at Paris, declaring that Napoleon Bonaparte is "their prisoner" and that "His safekeeping is entrusted to the British Government."^[13]
• 26 September – Austria, Prussia and Russia sign a Holy Alliance, to uphold the European status quo.^[14]
• 20 November – The Napoleonic Wars come to an end after 12 years, with the British government restoring the status quo of France, prior to when the French Revolution began in 1789.

• 15 January – Bertha Wehnert-Beckmann, German photographer (d. 1901)
• 11 March – Anna Bochkoltz, German operatic soprano, voice teacher and composer (d. 1879)^[15]
• 1 April- Otto von Bismarck, German statesman (d. 1898)
• 6 April – Robert Volkmann, German composer (d. 1883)
• 18 June – Ludwig Freiherr von und zu der Tann-Rathsamhausen, Bavarian general (d. 1881)
• 26 July – Robert Remak, German embryologist, physiologist and neurologist (d. 1865)
• 31 October – Karl Weierstrass, German mathematician (d. 1897)
• 8 December – Adolph Menzel, German artist, painter (d. 1905)

• 5 March – Franz Mesmer, German developer of animal magnetism (b. 1734)
• 11 May – Aletta Haniel, German business person (b. 1742)
• 16 June – Friedrich Wilhelm, Duke of Brunswick-Wolfenbüttel, German noble, general (killed in battle) (b. 1771)
• 3 July – Friedrich Wilhelm von Reden, German pioneer in mining and metallurgy (b. 1752)