Frederick William III of Prussia

Definition and stakes

L. Mühlbach Frederick the Great and His Court

What use has Prussia for such a sovereign? No, Frederick William would not, could not die! His son should not reign in Prussia, destroying what his father had built up! Never should Prussia fall into the hands of a dreaming poet! The king was resolved, therefore, that no one should know he was ill; no one should believe that he had any disease but gout; this was insignificant, never fatal. A man can live to be eighty years old with the gout; it is like a faithful wife, who lives with us even to old age, and with whom we can celebrate a golden wedding.
Source: Gutenberg

P. V. N. Myers A General History for Colleges and High Schools…

Not only were the Goliaths of his own dominions impressed into the service, but big men in all parts of Europe were coaxed, bribed, or kidnapped by Frederick's recruiting officers. No present was so acceptable to him as a giant, and by the gift of a six-footer more than one prince bought his everlasting favor. Rough, brutal tyrant though he was, Frederick William was an able and energetic ruler. He did much to consolidate the power of Prussia, and at his death in 1740 left to his successor a considerably extended dominion, and a splendid army of 80,000 men.
Source: Wikisource

Portrait of Justus Hashagen Justus Hashagen 1911 Encyclopædia Britannica, Volume 11… (1911)

A breach with the emperor was now inevitable, and this explains why in a last treaty (April 5, 1739) Frederick William obtained from France a guarantee of a part, at least, of Berg (excluding Düsseldorf) .
But Frederick William’s failures in foreign policy were more than compensated for by his splendid services in the internal administration of Prussia. He saw the necessity of rigid economy not only in his private life but in the whole administration of the state. During his reign Prussia obtained for the first time a centralized and uniform financial administration.
Source: Wikisource

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