Avraham ben ha-Rambam אברהם בן הרמבם
(1186 - 1237 CE) (1186 - 1237 לספירה)
He followed in his father's footsteps and took over all of his duties at 18, when the latter died. Thus he became leader of the Jewish community (nagid) and court physician in Egypt. His was able to use his great talents in these capacities, as well as in the writing of many works, foremost among them a defense of Rambam's writings.