Esther 1:16-18

Ahasuerus : king of Persia after Darius

Media : a country on the SW coast of the Caspian Sea
(34° 47´, 48° 30´)

Memucan : one of the seven princes of Persia under Ahasuerus

Persia : citizen(s) of Persia
(34° 47´, 48° 30´)

Vashti : queen of Ahasuerus