In 1809 Siedlce became part of the Polish Duchy of Warsaw established by Napoleon, within which it was the capital of the Siedlce Department. Following his defeat, during the creation of the Russian-controlled Congress Poland (1815), Siedlce became the seat of a province in the Russian Partition (see Podlasie Governorate). During the November Uprising against Russian domination, the Battle of Iganie (10 April 1831) took place near the town. In the January Uprising of 1863, Siedlce was again an important center of the anti-Tsarist rebellion. In 1867 the Siedlce Governorate was created. Siedlce continued to develop with new administration buildings, a post office complex, a courthouse, and a new prison. In the late 19th century, Siedlce became an important railroad junction, with connections to Warsaw (completed 1866), Brest Litovsk (1867), Małkinia Górna (1884), and Czeremcha (1906). In the beginning of the 20th century, local students launched a protest against the ruthless Russification policies. Subsequently, in 1906 the Russian secret police organized the Siedlce pogrom in order to terrorize the locals. At that time, Siedlce was an important center of Jewish culture, with Jews making up 50% of the population.