Konstanty Kalinowski
Konstanty Kalinowski, or Wincenty Konstanty Kalinowski (2 February [O.S. 21 January] 1838 – 22 March [O.S. 10 March] 1864), was a Polish writer,journalist, lawyer and revolutionary. He was one of the leaders of 1863 January Uprising on the lands of the former Polish–Lithuanian Commonwealth. He is considered as a national hero in present-day Poland, Lithuania and Belarus.