Why did Frederick II spend time at Rheinsberg Castle before becoming king?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Portrait painting of Frederick II of Brandenburg, King of Prussia, wearing a dark coat with a star medal, yellow gloves, and holding a cane, with the inscription Fridericus II Rex Prussiae. — Frederick II Frederick II, painting in the Castello di Miramare, Trieste, Italy.

Frederick II spent his time in semiretirement at Rheinsberg Castle during the late 1730s primarily to escape the strained environment created by his father, Frederick William I.

Living at the castle allowed Frederick to finally give free rein to his own intellectual and artistic interests, which his father had previously suppressed. During this period, he read voraciously and absorbed the ideas on government and international relations that would later guide his reign. These years at Rheinsberg are often considered the happiest of his life, providing him the necessary space to develop the philosophical and political perspectives that would eventually define his rule as a "philosopher king".1