First Coalition against revolutionary France, because Russia had encouraged Prussian participation, and because Prussia had recently suffered a major defeat at the Battle of Valmy, Prussia should be compensated – preferably with parts of the Polish territory. Russia soon decided to accept the Prussian offer. Partition treaty On 23 January 1793, Prussia signed a treaty with Russia, agreeing that Polish reforms would be revoked and both countries would receive broad swaths of Commonwealth territory. Russian and Prussian military took control of the territories they claimed, with Russian troops already present, and Prussian troops meeting only limited resistance. In 1793, deputies to the Grodno Sejm, the last Sejm of the Commonwealth, in the presence of Russian forces, agreed to the Russian and Prussian territorial demands. The Grodno Sejm became infamous not only as the last sejm of the Commonwealth, but because its deputies had been bribed and coerced by the Russians (Russia and Prussia wanted legal sanction from Poland for their demands). Imperial Russia annexed , while Prussia took . The Commonwealth lost about 307,000 km², being reduced to 215,000 km². Russian Partition Russia received the Kiev Voivodeship, Bracław Voivodeship, Podole Voivodeship and Minsk Voivodeship, and parts of the Vilnius Voivodeship, Nowogródek Voivodeship, Brest Litovsk Voivodeship and the Volhynian Voivodeship. This was accepted by the Grodno Sejm on 22 July. Russia reorganized its newly acquired territories into Minsk Viceroyalty and Izyaslav Viceroyalty (which in 1795 was split into Podolian and Volhynian Viceroyalties). Prussian Partition Prussia received the cities of Gdańsk (Danzig) and Toruń (Thorn), and Gniezno Voivodeship, Poznań Voivodeship, Sieradz Voivodeship, Kalisz Voivodeship, Płock Voivodeship, Brześć Kujawski Voivodeship, Inowrocław Voivodeship, Dobrzyń Land, and parts of the Kraków Voivodeship, Rawa Voivodeship and Masovian Voivodeship. This was accepted by the Grodno Sejm on 23 September or 25 September (sources vary). Prussia organized its newly acquired territories into South Prussia. The Commonwealth lost about 5 million people; only about 4 million people remained in the Polish–Lithuanian lands. What was left of the Commonwealth was a small buffer state with a puppet king, and Russian garrisons keeping an eye on the reduced Polish army. Aftermath Targowica confederates, who did not expect another partition, and the king, Stanisław August Poniatowski, who joined them near the end, both lost much prestige and support. The reformers, on the other hand, were attracting increasing support. In March 1794 the Kościuszko Uprising began. The defeat of the Uprising in November