Ezra 6:15

Adar : a place marking part of the southern border of Israel and Judah,son of Bela son of Benjamin

Darius : king of Persia after Cyrus and Artaxerxes Smerdis; Darius I,son of Ahasuerus; Darius II the Mede,king of Persia after Darius II; Darius III the Persian