20th Lithuanian Infantry Regiment â infantry regiment of the Army of the Duchy of Warsaw.
Formed in 1812 in Novogrudok (according to another source, Slonim) in the former lands of the Grand Duchy of Lithuania. Its commander from July 13, 1812, was Colonel Adam Bispink (Adam Biszping), Major Glazer, and the battalion commanders were Milberg, Walicki, and Pà Âàczyà Âski.
The regiment took part in the defense of Modlin in 1813. As of May 1, 1813, the regiment's strength was 29 officers and 891 soldiers.
After Napoleon's abdication, Tsar Alexander I of Russia agreed to repatriate PolishâÂÂLithuanian units. They were to serve as a base for the formation of the Army of Congress Poland under the command of Grand Duke Konstantin. On June 13, 1814, the regiment was assigned a concentration site in à Âomà ¼a. However, the regiment was not recreated, as the new army provided for only 12 infantry regiments.