Ostap Dashkevych

Eustachy Daszkiewicz or Ostap Daszko (Ukrainian: Остап Дашкевич; born in Ovruch – died after 1535) is considered to be the first recorded leader of a Cossack defense force (according to Dmitri Bantysh-Kamensky, Dmytro Doroshenko, and others). However that claim of "first" is debatable because there were many other early leaders, including from Severia and Dmytro Vyshnevetsky.

Ostap Dashkevych

Eustachy Daszkiewicz or Ostap Daszko (Ukrainian: Остап Дашкевич; born in Ovruch – died after 1535) is considered to be the first recorded leader of a Cossack defense force (according to Dmitri Bantysh-Kamensky, Dmytro Doroshenko, and others). However that claim of "first" is debatable because there were many other early leaders, including from Severia and Dmytro Vyshnevetsky.