"Stone pillar" on the western outskirts of the city Berestechko - this chapel, an obelisk on the grave of Alexander Pronsky, son of the founder of the city. Pronskii was a Protestant-Calvinist. Returning in 1595 from Rome, he gave Calvinists Catholic Church in Berestechko. His successor Alexander Leszczynski was also a follower of Calvinism, with its Berestechko became one of the main centers sotsinianstva (Arianism) - the radical currents in Protestantism. "Murowana post" on the grave Pronsky - a unique monument sotsiniansky who did not survive anywhere else in the world. 16-meter obelisk built of solid brick masonry cement. On the north side of the inscription: "Alexander Fridrihovich Pronskii, Castellan, died the year 1601, the last days of March."