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Frederick II

Frederick II (24 January 1712 – 17 August 1786) ruled the Kingdom of Prussia from 1740 until 1786, the longest reign of any Hohenzollern king at 46 years. His most significant accomplishments during his reign included his military victories, his reorganisation of Prussian armies, his patronage of the arts and the Enlightenment and his success in the Seven Years' War.