The Battle of Radivonishki was fought on 12 May 1655 between Jerzy Wisniewski's Polish-Lithuanian mercenary company and a Swedish caravan led by Arfast Wahlström amid the Deluge.
Despite the failure of the Russo-Swedish siege of Vilna and the defeat of two Russian armies in Belarus, the Poles continued to struggle against Swedish numerical superiority in the north. On 12 May 1655, the Swedes captured Vilna after launching an assault of their own, delivering a major blow to Poland. However, the mercenary captain Jerzy Wisniewski continued to seek opportunities to weaken the Swedish war effort. On the same day as Vilnius' fall, he and his party fell upon a Swedish caravan southwest of Lida. The Polish cavalry easily overwhelmed the Swedish infantry, slaughtering them to a man. Only one Polish soldier was killed during the quick battle, and Wisniewski and his party pillaged the caravan and used the proceeds to hire more mercenaries, buy more supplies, and continue the struggle against the Swedes.