Attack on Marstrand

The Attack on Marstrand
Part of the Great Northern War
The Swedish Carlsten fortress, Marstrand 1719
Date July 10–16, 1719 Location Marstrand, Bohuslän, Sweden Result Dano-Norwegian victory
Belligerents
Denmark–Norway	Swedish Empire
Commanders and leaders
Peder Tordenskjold	Henrich Danckwardt
Strength
600–700 soldiers and sailors. 18 ships including barges, galleys and mortar ships.	388 total troops 227 soldiers, 54 artillery men, 107 sailors, 6 frigates, 3 galleys, 2 burner ships, 1 barge

The Attack on Marstrand was a successful Dano-Norwegian siege of the Swedish town of Marstrand and Carlsten fortress which took place between July 10 and July 16, 1719 during the end of the Great Northern War.

After a Dano-Norwegian assault on northern Bohuslän, ships under the command of Peter Tordenskjold attacked the Swedes at Marstrand harbor and the immobile ships of the Swedish Gothenburg Fleet. The Danes subsequently attacked Carlsten fortress, whose garrison surrendered swiftly, partly because of psychological warfare.

The commander of the fortress, Colonel Henrich Danckwardt, was later sentenced to death by a Swedish court-martial for abandoning the fort while it was still deemed defensible.

The surrender of Carlsten fortress in 1719 is still surrounded by myths and legends.