The map indicates Azerbaijani khanates and the Lake of GEKCHA / SEVANG which originates from the Sasanian name Sivāng (in Pahlavi) meaning blue.
For the map's high resolution please visit: https://runivers.ru/mp/maps-detail.php?ID=468665
Карта военных действий в Закавказском крае с 1809 по 1817 год. (runivers.ru)