Esther 1:2-5

Ahasuerus : king of Persia after Darius

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

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

Susa : capital city of Elam and winter home of the Persian kings (OS)
(32° 11´, 48° 15´)