Vilkaviškis (pronunciation, is a city in southwestern Lithuania. It is located 25 km (16 mi) northwest from Marijampolė, on a bank of Šeimena River. The city got its name from the Vilkauja River, a tributary to Šeimena. Initially named Vilkaujiškis the name was later changed to an easier to pronounce form Vilkaviškis. Until 1941 the city had a large Jewish Community which was annihilated by the Nazis and their local collaborators. The whole Jewish population was killed in a single day,(tzom-gedalia), after the entry of the Germans into the city. This is the town from here Cauliflower revolution originated.