House of Weimar

• Coat of Arms
• 

  House of Weimar
  Counts of Diessen, Weimar
  and Orlamünde
  Margraves of Carniola and Istria

• Cadet Branches
• 

  House of Ballenstedt-Orlamünde
  Counts of Weimar and Orlamünde
  Counts Palatine of the Rhine
  Matrilineal branch issued from Adelheid, daughter and heiress of Otto I, Count of Weimar and Orlamünde

• 

  House of Ascania-Orlamünde
  Lords of Lauenstein, Schauenforst, Graefenthal and Lichtenberg
  Counts of Weimar and Orlamünde
  Matrilineal branch issued from Adelheid, daughter and heiress of Otto I, Count of Weimar and Orlamünde