SSC MTS EXAM

Detailed explanation-1: -Xerxes was the son of Darius I and Atossa, daughter of Cyrus; he was the first son born to Darius after his accession to the throne. Xerxes was designated heir apparent by his father in preference to his elder brother Artabazanes.

Detailed explanation-2: -Darius was crown prince of the Persian Empire. He was the eldest son of the Persian king Xerxes I and his wife Amestris, the daughter of Onophas. His younger brothers were Hystaspes and Artaxerxes, and his younger sisters were Rhodogyne and Amytis.