Prince Adalbert of Prussia (Heinrich Wilhelm Adalbert) was a son of Prince Wilhelm of Prussia and Landgravine Marie Anna of Hesse-Homburg. He was a naval theorist and admiral. He was instrumental during the Revolutions of 1848 in founding the first unified German fleet, the Reichsflotte. During the 1850s he helped to establish the Prussian Navy.
In 1852 Adalbert argued that Prussia needed to build a naval base on the North Sea. He arranged the Jade Treaty of 20 July 1853, in which Prussia and the Grand Duchy of Oldenburg jointly withdrew from a region on the west bank of the Jade bay, where from 1854 onward Prussia established the fortress, naval base and city of Wilhelmshaven.
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