About Yesaul
Yesaul, or osaul, Ukrainian: осавул, a post and a rank in the Ukrainian and Russian Cossack units. The first records of the rank imply that it was introduced by Stefan Batory, King of Poland in 1576.
Yesaul, or osaul, Ukrainian: осавул, a post and a rank in the Ukrainian and Russian Cossack units. The first records of the rank imply that it was introduced by Stefan Batory, King of Poland in 1576.
