 The secular clergy numbered about 440 priests; the cathedral chapter 5 prelates and 3 canons.The secular clergy are educated in the seminary, which has 15 professors and 160 students when founded in 1582, closed in 1862; reopened in 1872, and had but two students, but their number gradually increased.At Brest there was a petit seminaire, which was closed in 1830; the seminary at Białystok was closed in 1842.