Overview
Frederick I (; 11 July 1657 – 25 February 1713), of the Hohenzollern dynasty, was (as Frederick III) Elector of Brandenburg (1688–1713) and Duke of Prussia in personal union (Brandenburg-Prussia). The latter function he upgraded to royalty, becoming the first King in Prussia (1701–1713). From 1707 he was in personal union the sovereign prince of the Principality of Neuchâtel.
Biography
Family
Born in Königsberg, Frederick was the third son of Frederick William, Elector of Brandenburg by his father's first marriage to Louise Henriette of Orange-Nassau, eldest daughter of Frederick Henry, Prince of Orange and Amalia of Solms-Braunfels. His maternal cousin was King William III of England. Upon the death of his father on 29 April 1688, Frederick became Elector Frederick III of Brandenburg and Duke of Prussia. Right after ascending the throne Frederick founded a new city southerly adjacent to Dorotheenstadt and named it after himself, the Friedrichstadt.
Military career
Frederick was noted for his opposition to France, in contrast to his father who had sought an alliance with Louis XIV. Frederick took Brandenburg into the League of Augsburg against France and in 1689 led military forces into the field as part of the allied coalition. That year an army under his command besieged and captured Bonn. Despite this opposition to France (a characteristic that was even more prominent in his son and heir) he was fond of French culture, and styled his court in imitation of that of Louis XIV.
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