 Lithuanian support of the Great Prussian Uprising ceased, and the orders made advances against Semigallians and Curonians uninterrupted.Together with Shvarn, Vaišvilkas attacked Poland in 1265 to avenge devastation of Yotvingians in 1264.When in 1267 he decided to go back to monastic life, Vaišvilkas transferred the title of Grand Duke to Shvarn.