Resisting this, Frederick William, equipped 2,000 troops at his own expense and offered them and his services to Emperor Franz I of Austria in the Convention of Vienna on 25 February 1809. Due to their black uniform these troops were called the Black Brunswickers. After the Battle of Wagram, Austria had made peace with Napoleon, Frederick William decided to pull his troops on their own through northern Germany to embark on the North Sea to England and on the side of England continue to struggle against Napoleon. After defeating a Westphalian infantry regiment at the Battle of Halberstadt on 29 July, the Black Brunswickers and their leader reached Braunschweig on 31 July. The troops were joyfully welcomed by the population, but on the morning following their arrival Frederick William received word that a 5,000-strong Westphalian division commanded by General Reubell was approaching from the north of the city.
The Black Brunswickers were outnumbered and were also threatened by an invading Dutch division from Halberstadt. In order not to fall between the two divisions, the Duke decided to face the Westphalians north of Brunswick, near the village of Ölper, to attempt to break through to the north.
At 14:00 the "Black Horde" moved toward Ölper, reinforced by about 200 citizens of Braunschweig, who were equipped with material looted from Halberstadt. Major Korfes destroyed the crossings over the Oker, in order to prevent flank attacks by the enemy.
An hour later, Reubell's troops appeared at Ölper; the lead Westphalian cuirassiers were immediately fired upon and retreated. The First Infantry Regiment of Westphalia now advanced on the village of Ölper. Friedrich Wilhelm left and withdrew his troops to the south and stationed artillery on a hill. From there they could counter the Westphalian infantry attack.
Now Brunswick continued with their Duke at the head of the counter-attack; Friedrich Wilhelm's horse was killed, but he himself remained unhurt. However, Captain von Rabiell, commander of the advancing companies, fell. The Black Brunswickers progressively withdrew, without having recaptured Ölper.
A direct attack on the Westphalians that followed, failed. The bold counterattack against the Hussars under Major Schrader did do damage to them and caused great confusion in the Westphalian ranks.
An artillery battle finally destroyed one of Brunswick's guns, but further attacks never came. Although the Duke was planning a night attack, Reubell had presciently already cleared the village of Ölper.
The obelisk commemorating the 1809 Battle of Ölper in the community of Braunschweig-Ölper.
Losses
The casualty figures for the numerically far superior Westphalian troops were estimated to be between 200 and 500 men. Estimates for losses of Black Brunswicker troops vary from 40 (22 dead and 18 missing) and 86 (24 dead and 62 wounded), but these are believed to be understated.
Results and consequences
Although Friedrich Wilhelm is believed to have made some tactical errors in evacuating Ölper and then attempting its recapture, having an insufficient perspective on his overall position and commanding only a small portion of his troops, the Brunswick troops fought bravely against a numerically superior enemy. This was due in part to the greater fighting experience of the Brunswick troops and their high morale, as they had previously defeated a Westphalian Regiment at Halberstadt, but also due to the hesitancy of General Reubell. At the end of the day the Westphalians had taken the battlefield, but they withdrew from Ölper after nightfall and did not defeat the "Black horde", nor stop their further movement to the North Sea. On 2 August the Brunswick Corps broke through and marched on through Celle, Hanover, Nienburg and Delmas, while pursued by Reubell's troops. On 7 August they reached Elsfleth, from which they were shipped to Helgoland and later to the Isle of Wight. Duke Friedrich Wilhelm's troops entered British service, and they fought from 1810 to 1814 under the command of Wellington in the Peninsular War. General Reubell was dismissed from his post by Napoleon because of his failure, but fled to America before he could be brought to justice.
In 1824 and 1833 Duke Charles II and Duke William, sons of the Black Duke, donated a Cross of Honor for 1809, which they awarded to the participants.
Notes
References
Further reading
Wenzlik, Detlef (2002). Unter der Fahne des Schwarzen Herzogs (in German). Hamburg.{{cite book}}: CS1 maint: location missing publisher (link)
Smith, Digby; Pivka, Otto von (1973). The Black Brunswickers. Oxford: Osprey Men-at-Arms.
Kortzfleisch, Gustav von (1896). Geschichte des Herzoglich Braunschweigischen Infanterie-Regimentes und seiner Stammtruppen 1809–1902. 3 Bände (in German). Braunschweig.{{cite book}}: CS1 maint: location missing publisher (link)
Kortzfleisch, Gustav von (1894). Des Herzogs von Braunschweig Zug durch Norddeutschland im Jahre 1809 (in German). Berlin.{{cite book}}: CS1 maint: location missing publisher (link)
Müller, Willi (1924). Das Gefecht bei Ölper am 1. August 1809 (in German). Vol. 1. Niedersächsisches Jahrbuch für Landesgeschichte.{{cite book}}: CS1 maint: location missing publisher (link)
Voges, Hermann (1926). Zur Geschichte des Gefechtes bei Ölper am 1. August 1809 (in German). Vol. 3. Niedersächsisches Jahrbuch für Landesgeschichte.{{cite book}}: CS1 maint: location missing publisher (link)
