Shvarn

Shvarn or Shvarno (c. 1236/1240 – c. 1270) was the knyaz of western parts of Galicia. An influential leader, he became involved in internal struggles of power within neighboring Grand Duchy of Lithuania and briefly (1267–1269) was the Grand Duke. He also held the town of Kholm (modern Chełm, Poland) in his domain.