Frederick William I was a Prussian King known for his military prowess, economic reforms, and the creation of the famous Potsdam Giants regiment.
Frederick William II was a Prussian king known for his patronage of the arts, the construction of Sanssouci Palace, and his military reforms.
Frederick William III was the King of Prussia from 1797 to 1840, leading the nation through the tumultuous Napoleonic Wars and initiating significant administrative and social reforms.