Johann Dominicus Fiorillo published another edition of the engravings on 12 February 1803, also wanting to encourage public interest. Max von Schenkendorf criticized the defacement of the castle. Throughout the Napoleonic period, the army used the castle as a hospital and arsenal. Napoleon has visited the castle in 1807 and 1812. After the War of the Sixth Coalition, the castle became a symbol of Prussian history and national consciousness. Initiated by Theodor von Schön, Oberpräsident of West Prussia, in 1816, restoration of the castle was begun. In 1910 the Naval Academy Mürwik in Flensburg was built. The Marienburg was a pattern for this new "Red Castle". The restoration of the Marienburg was undertaken in stages until World War II started.