Constitution of Prussia (1850)

The 1850 Constitution of Prussia was an amended version of the 1848 Constitution. Unlike the earlier version that King Frederick William IV had unilaterally imposed on the Kingdom of Prussia on 5 December 1848, the 1850 revision was a cooperative effort between the new Prussian Parliament, the King and his ministers.

Source: Wikipedia — Constitution of Prussia (1850) (CC BY-SA 4.0)