Duchy of Saxe-Altenburgball

Duchy of Saxe-Altenburgball was a historical countryball in  Thuringiaball.

History
Duchy of Saxe-Altenburgball was born from Duchy of Saxe-Weimarball, but in 1672, it got united with Duchy of Saxe-Gothaball, forming Duchy of Saxe-Gotha-Altenburgball. In 1826 Duchy of Saxe-Gotha-Altenburgball split, reforming Duchy of Saxe-Altenburgball, that then got annexed into Thuringiaball in 1920.