In 1826 Russian and Turkish delegates met at Akerman in Bessarabia, and in September of that year signed a convention by which the Russian protectorate over the Serbs was recognized, the Serbs were granted internal autonomy, the right to trade and erect churches, schools, and printing-presses, and the Turks were forbidden to live in Serbia except in eight garrison towns; the garrisons were to be Turkish, and tribute was still to be paid to the Sultan as suzerain.