 Complete the following phrase:  After the capture of Chandax, Abd al-Aziz was taken captive with his family to Constantinople, where they were paraded at Nikephoros Phokas triumphal procession. They were then given rich presents and an estate to settle by Romanos II. The Byzantine sources report that the emperor considered making Abd al-Aziz a senator, but the latter refused to convert to Christianity. One of his sons, however, al-Numan, or Anemas in Greek, converted and entered Byzantine service, until he was killed at the 