Battle of Heilsberg

The Battle of Heilsberg took place on 10 June 1807, during the Napoleonic Wars.[4]

Battle of Heilsberg
Part of the War of the Fourth Coalition
Battle of Heilsberg. Etching by unknown artist.
Date10 June 1807
Result Russo–Prussian tactical victory;
French strategic victory
France French Empire Russia Russian Empire
Kingdom of Prussia Kingdom of Prussia
Commanders and leaders
France Joachim Murat
France Jean Lannes
Russia Levin Bennigsen
50,000[1]-65,000[2] 53,000[2][3]-90,000[1]
Casualties and losses
1,398 killed
10,059 wounded
864 captured[2]
6,000 killed and wounded[2][3]


On 24 May 1807, the Siege of Danzig ended when Prussian General Friedrich Adolf, Count von Kalckreuth capitulated to French Marshal François Joseph Lefebvre. With Danzig (modern day Gdańsk) secured, Napoleon was now free to turn against Bennigsen's army. Yet it was the Russian who struck first when he ordered his columns to converge on Marshal Michel Ney's exposed VI Corps on 2 June. Outnumbered 63,000 to 17,000, Ney fought a rear guard action at the Battle of Guttstadt-Deppen on 5 and 6 June. Though he lost his baggage train, two guns, and 2,042 men, Ney managed to escape to the southwest over the Pasłęka (Passarge) River with the bulk of his soldiers, leaving Bennigsen and his officers upset over the missed opportunity.

Within two days, Napoleon ordered his 190,000-man army to close in on the 100,000 Russians and 15,000 Prussians. Detecting the approaching avalanche, Bennigsen ordered his troops to retreat on Lidzbark Warmiński (Heilsberg). The Russian army took up strong defensive positions around the town, which stood on the Łyna (Alle) River. The French army, under Marshals Murat and Lannes, attacked on 10 June. Bennigsen repelled several attacks, resulting in huge French casualties, but had to withdraw towards Friedland the following day. Four days later, the decisive Battle of Friedland occurred, ending the War of the Fourth Coalition with the passing of the Treaty of Tilsit.

Influences on the battleEdit


The Battle of Heilsberg was fought on the Alle river, known today as the Lyna. The Teutonic Castle being the focal point of the battle was held by Russian control.


Aside from geographical advantages, the Russians had also spent three to four months compiling tactics on how to defend against a French invasion, regardless of where they would attack the castlegrounds. Defensively, the castle was supported by its bridges and walls, both of which were built along the perimeter of the castle. The land surrounding the Teutonic Castle acted as an obstacle for the French army due to the increase of elevation from the base of the river to the castles foundation. The Prussian 21st Fusiliers, commanded by Ludwig August von Stutterheim, was garrisoned there.[5]


Although the terrain was punishment enough for the French, weather also took a toll on their abilities and health. During the day, on top of the weight being carried in regards to supplies and armory, temperatures reached dangerously hot and humid levels. The dampness and bitter cold of the night also played a significant role by providing little opportunity for rest.

Strategies and tacticsEdit

Beginnings of the battleEdit

The French were initially outnumbered by the Russians, and knowing this, positioned themselves to cut off any opportunity for the Russians to obtain reinforcements. At the beginning of the battle, French army men were separating amongst their own divisions. This tactic was thought to help block Russian sights in terms of all the French positioning and flanking. Although the woods surrounding the French had provided a perimeter of camouflage, the shrubbery did not extend to the barren field in front of the castle. It was because of the forest density, however, that dodging the Russian artillery and infantry fire was difficult to maneuver around.

Middle/end of the battleEdit

In the midst of war, French cavalry leaders Murat, Soult, and Lannes had segregated their troops from the greater unit, which would soon result in utter failure. After such separation, the smaller units within the reserves had refused orders to flank and attack stronger sides of the Russian armies. This was partly because orders being issued by reserves of the secondary infantry, rather than Marshalls and Major Generals, were not given enough of credit of leadership in their absence. Despite both sides losing a significant number of men, each refused to withdrawal their armies. The realization of the large number of French soldiers who had already been a victim of death, and the success of the Russian defense gave Bennigsen and Napoleon little choice but to call an undocumented truce to end hostilities. This truce was focused primarily on recovery of wounded soldiers. The battle ended with medics and soldiers alike helping the wounded and retrieving the dead.

Outcome and post-war analysisEdit

This battle is recognized as having been tactically indecisive due to neither side having gained any significant ground, it is most notably discussed as a battle that yielded little change in the balance of strength between the Russians and the French. By most accounts, this was a successful Russo-Prussian rearguard action. Napoleon never realized he faced the entire army at Heilsberg. Ney attacked prematurely and at the strongest point in the Russo-Prussian line. The Russians had built extensive fortifications on the right bank of the Alle river, but only a few minor redoubts on the left bank, yet the French advanced over the river to give battle, squandering their advantages and incurring casualties [6] The Battle of Heilsberg was fought four days before the decisive Battle of Friedland.

French Army lossesEdit

1,398 killed, 10,059 wounded, 864 captured[2] Three units lost their eagles, and Digby Smith places the losses higher than Clodfelter, at 1,398 killed, 10,059 wounded and 864 captured. Nicolas Jean-de-Dieu Soult's IV corps sustained the majority of losses: 8,286, and General François Xavier Roussel, Chief of Staff of the Imperial Guard, was killed. Three generals were wounded, and Jean Lannes' corps lost 2,284 killed and wounded.[7]

Russo-Prussian lossesEdit

Disputes over the killed and wounded remain. Clodfelter estimates 6,000 killed and wounded.[2][3] In addition, generals Koschin, Warneck, and Pahlen were killed; Dmitry Dokhturov, Werdrevski, Fock, Zakhar Dmitrievich Olsufiev, Duka, Laptiev, Passeck and Duke Charles of Mecklenburg were wounded. The Russian commander, Bennigsen was sick all day, but remained on his horse despite falling off unconscious several times. Digby Smith says that the Russian Prussian force lost 2-300 dead, and about 5-6000 wounded, and they lost two guns.[8]

Phase 1 Phase 2 Battle picture by Knötel

Notable officers of the French Army present were:

Notable officers of the Russian Army present were:


  1. ^ a b Pigeard, Dictionnaire des batailles de Napoléon, pp. 683
  2. ^ a b c d e f Clodfelter M. Warfare and Armed Conflicts: A Statistical Reference to Casualty and Other Figures, 1500-2000. McFarland, 2002. P. 169
  3. ^ a b c Roberts A. Napoleon: A Life. Penguin Group. 2014. P. 450
  4. ^ Theodore A. Dodge (2001). Napoleon: A History of the Art of War. Adamant Media. ISBN 1-4021-9517-6.
  5. ^ German Canadian Museum, Schlacht von Jena - Auerstedt 1806, ISBN 9781894643108 p. 247.
  6. ^ Digby Smith. The Napoleonic Wars Data Book. London: Greenhill, 1998. ISBN 978-1853672767 pp. 247–248.
  7. ^ Smith, p. 247.
  8. ^ Smith, p. 248.

External linksEdit

Coordinates: 54°07′00″N 20°35′00″E / 54.1167°N 20.5833°E / 54.1167; 20.5833