Sa'adiah ben Natan Neta

Sa'adia was a Polish/Lithuanian rabbi and prominent disciple of the Gra. He lived in his house, studied closely with him and served as a manuensis for a number of his works. He was sent by the Gra to publicize the latter's strident opposition to Chassidism. He came to the Land of Israel as one of the leaders of the second wave of the aliyah of the Gra's students.