He was Exilarch of the Jews in Babylon about 240-260 and may be the "Hanan" in the list shown by Stuart.. Sources: 1. Stuart, R.W. "Royalty for Commoners" line 329. 2. ..., "Encyclopedia Judiaca", Vol.6, pp.1024-1025. 3. ..., "The Jewish Enclyclopedia" Vol.V, pp.288-290.