The battle of Battle of Copenhagen on 2 April 1801. The scenery is shown as seen from the tower of "Vor Frues Kirke" ("Our Lady of Copenhagen", the Copenhagen Cathedral). The battle at around 13:00 hours. The Fortress Trekroner [Three Crowns] is located in the upper left of the picture flying a flag, in front of Trekroner is the smaller fort "Lynetten". The flag ship <a href="https://en.wikipedia.org/wiki/Dannebrog" class="extiw" title="en:Dannebrog">Dannebrog</a> is the burning ship in the centre. Features still visible today: The Flag, Dannebrog, flying from the Sixtus battery: This is the "Flag of the Kingdom" (and flown here from 1788 to today). The mast crane of Christian IV (the white building to the centre-left of the picture) and the fortification line around the naval base Holmen, including the Redan line. Both still exist. This version "may" have been used by <a href="https://en.wikipedia.org/wiki/Christian_August_Lorentzen" class="extiw" title="en:Christian August Lorentzen">Christian August Lorentzen</a> for painting his version of the battle.
Caspar Melchior Balthasar Butty
<a rel="nofollow" class="external text" href="http://www.artnet.com/artists/caspar-melchior-balthasar-butty/bataillen-d-2-april-1801-paa-ki%C3%B8benhavns-reed-49EGAYTT0xJhROBaaBYaCA2">artnet</a>