Nagid

Nagid, (Hebrew: נגִּיד‎‎ pronounced [na.ˈgid]), is a Hebrew term meaning a prince or leader. This title was often applied to the religious leader in Sephardic communities of the Middle Ages. In Egypt, the Jewish Nagid was appointed over all the Jews living under the dominion of the king of Egypt; he was invested with all the power of a king and could punish and imprison those who acted in opposition to his decrees; his duty was also to appoint the Dayyanim (judges) in every city. Among the individuals bearing this title are the following:

...
Wikipedia