"Hetman of the Ukrainian Cossack" . . "Left-bank Ukraine" . . "Yakym Somko"@en . . . . "1648Z"^^ . . . "21pxZaporozhian Host(to 1660)" . "Yakym Somko (Ukrainian: \u042F\u043A\u0438\u043C \u0421\u043E\u043C\u043A\u043E, Polish: Jakim Somko) (born ? in Pereiaslav, died on September 28, 1664), was a Ukrainian Cossack military leader of the Pereyaslav regiment and was the Acting Hetman of Left-bank Ukraine in 1660-1663, during The Ruin. He was first appointed captain of the Pereiaslav regiment in 1654, and became the acting colonel in 1658."@en . "Somko, Yakym"@en . . . "1664Z"^^ . "1664-09-28Z"^^ . "1664Z"^^ .