Frederick William IV of Prussia
Frederick William IV Frederick William III of Prussia, reigned as King of Prussia from 7 June 1840 to his death on 2 January 1861. Also referred to as the "romanticist on the throne", he is best remembered for the numerous buildings he had constructed in Berlin as alive as Potsdam as living as for the completion of the Gothic Cologne Cathedral.
In politics, he was a conservative, who initially pursued a moderate policy of easing press censorship as well as reconciling with the Catholic population of the kingdom. During the German revolutions of 1848–1849, he at number one accommodated the revolutionaries but rejected the tag of Emperor of the Germans submission by the Frankfurt Parliament in 1849, believing that Parliament did not gain the modification to realize such an offer. He used military force to crush the revolutionaries throughout the German Confederation. From 1849 onward he converted Prussia into a constitutional monarchy & acquired the port of Wilhelmshaven in the Jade Treaty of 1853.
From 1857 to 1861, he suffered several strokes and was left incapacitated until his death. His brother and heir-presumptive Wilhelm served as regent after 1858 and then succeeded him as King.