Karijotas or Koriat (baptized Michal; died between 1358 and 1363) was the Duke of Navahrudak (Lithuanian: Naugardukas) and Vaŭkavysk (Lithuanian: Valkaviskas), one of the sons of Gediminas, Grand Duke of Lithuania.
[2] In 1349 Algirdas sent him along with two sons, Aikštas or Eikšis from Eišiškės and Simeon from Svislach,[3] to Jani Beg, Khan of the Golden Horde, to negotiate an alliance against the Teutonic Knights and rising Grand Duchy of Moscow.
[6] Reliable data is available about four: Aleksander, George, Konstantin, and Fedir, who helped Algirdas, Grand Duke of Lithuania, to defeat the Tatars in the Battle of Blue Waters in 1363.
Fedir (died in 1414) inherited Navahrudak from his father and after other brothers were dead ca.
In 1392 he disobeyed Vytautas the Great and had to run to Hungary, where he ruled Mukachevo and built Palanok Castle.