Clementsen was employed as a master at the Royal Danish Navy Construction School at <a href="//commons.wikimedia.org/w/index.php?title=Category:Holmen&amp;action=edit&amp;redlink=1" class="new" title="Category:Holmen (page does not exist)">Holmen</a>. He did a number of paintings but never signed them. Here he has painted a squadron consisting of Dronning Juliane Marie (70 guns), Seyeren (60 guns), Sjælland (60 guns), Slesvig (50 guns), Ditmarsken (50 guns), Nellebladet (50 guns), Docquen (30 guns) and Hvide Ørn (30 guns).
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Clement Mogensen Clementsen (Rønneby) (ca. 1720-1807)</div>
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