Mykhailo Krychevsky

Mykhailo Krychevsky or Stanisław Krzyczewski or Krzeczowski (died 3 August 1649) was a Polish noble, military officer and Cossack commander.

He was born Stanisław Krzeczowski or Krzyczewski (sources vary) to a Roman Catholic family of nobility (szlachta), polonized around the turn of the 16th and 17th centuries in the Brest Litovsk Voivodeship.

Ukrainian historian, Vyacheslav Lypynsky, in his 1912 biography of Krychevsky, speculated that with the rank of rotmistrz he fought in the Polish-Swedish wars (1627–1629) under hetman Stanisław Koniecpolski, where he led a chorągiew (unit) of Polish hussars.

However more recent Polish studies dispute this, noting that the rotmistrz, known in some sources only by his surname Krzeczowski and in others as Mikołaj Krzyczewski, was probably another person.

[1] In 1643 Hetman Koniecpolski, who considered him a valuable commander, gave him the rank of polkovnyk (colonel) and made him the leader of a registered Cossacks unit (pułk) based in Chyhyryn.

[1] According to an account given in Polski Słownik Biograficzny, in April, while securing a fortification in Bucki, a Cossack unit under his command rebelled and he was taken prisoner.

[2] In either case, all accounts agree that Krychevsky converted to Orthodoxy from Roman Catholicism, adopting a new name, Mykahilo (Michael).

Field Hetman of Lithuania Janusz Radziwiłł wanted to save his life, so he could be put on trial for joining the uprising, but his wounds were too great and he died soon afterwards, on 3 August 1649.