Duchy of Courland and Semigallia

• Coat of Arms
• 

  Duchy of Courland and Semigallia

• Ruling Houses
• 

  House of Kettler
  1561–1737

• 

  House of Biron
  1737–1740

• 

  Council of the Duke
  1740–1758

• 

  House of Brunswick-Bevern
  Louis Ernest of Brunswick-Lüneburg
  1741

• 

  House of Wettin
  Charles of Saxony
  1758–1763

• 

  House of Biron
  1763–1795

• 

  House of Romanov
  1795-1918
  Conquered by Russia

• Noble Houses
• 

  House of von Ascheberg

• 

  House of von Bagge af Boo

• 

  House of von Behr

• 

  House of Biron

• 

  House of Budde

• 

  House of von Bülow

• 

  House of von Freytag-Loringhoven

• 

  House of Fircks

• 

  House of von Hahn

• 

  House of Kettler

• 

  House of Medem

• 

  House of Nettelhorst

• 

  House of Oettingen

• 

  House of Uexküll