Esther 1:2

1:2 In those days, as King Ahasuerus sat on his royal throne in Susa ¹  the citadel, ² 

Esther 9:11

9:11 On that same day the number of those killed in Susa the citadel was brought to the king’s attention.

Esther 9:14-15

9:14 So the king issued orders for this to be done. A law was passed in Susa, and the ten sons of Haman were hanged. 9:15 The Jews who were in Susa then assembled on the fourteenth day of the month of Adar, and they killed three hundred men in Susa. But they did not confiscate their property.

[1:2]  ¹ tn Heb “Shushan” (so KJV, ASV). Most recent English versions render this as “Susa.”

[1:2]  ² tn The Hebrew word בִּירָה (birah) can refer to a castle or palace or temple. Here it seems to have in mind that fortified part of the city that might be called an acropolis or citadel. Cf. KJV “palace”; NAB “stronghold”; NASB “capital”; NLT “fortress.”