Pesia Rapoport  = R. Saul Issachar Berish Bick (1786–1854) - Head of the Jewish Court from 1840 until his death in 1854.
R. Saul Issachar Berish Bick, identified as Pesia Rapoport, held the position of head of the Jewish court from 1840 to 1854, which was the year of his demise.