sentences:  To this end he left Safed, where he seemed to have lived, and relocated to Constantinople.While engaged on the works of his grandfather, he entered (1714) into close relations with the chief rabbi of Constantinople, Judah Rosanes (also known simply as Mishneh LaMelech), at the time generally regarded the highest authority of the Orient.Rosanes appointed Culi dayan, which, together with his position as teacher, secured to him a sufficient livelihood.