King of Prussia Frederick II

Born in Berlin in 1712, Frederick II of Prussia grew up under the strict rule of his father, Frederick William I. Their relationship was famously harsh, and the young prince's early love of French literature, music, and intellectual life clashed with the military values of the Prussian court. He became king in 1740 and soon launched the campaigns that brought him lasting fame, especially the seizure of Silesia and his leadership during the Seven Years' War.

Frederick's long reign helped turn Prussia into one of the strongest states in Europe. He is often remembered as an "enlightened" monarch because he supported religious tolerance, encouraged agriculture and administration reforms, and took a serious interest in law, learning, and culture. At the same time, his rule depended on a tightly organized state and a powerful army, so his legacy is tied both to reform and to militarization.

He was also a writer, an accomplished flute player, and a patron of the arts, with Sanssouci in Potsdam becoming closely associated with his court. Later generations gave him the name Frederick the Great, reflecting the enormous impact he had on Prussian and European history. He died in 1786 after a reign of nearly 46 years.