Gothic cemetery chapel dedicated to St. Hedwig was erected in the 14th century. Its founder was most probably the duke of Brześć, Louis I, known as the great promoter of the cult of Saint Hedwig. At the beginning of the fifteenth century, the chapel was significantly consumed by fire. Once again it burned in 1588, then the vault and the sacristy were destroyed. The building was rebuilt at the turn of the sixteenth and seventeenth centuries, but without vault. In 1860, a vestibule was added to the chapel, and in 1876 a western porch was erected.
The chapel was made of bricks laid in the Flemish bond with the participation of a zendrówka bricks. It is an aisleless, three-bay structure with an interior covered with a beamed ceiling that replaced the original vault. It has a gable roof, covered with tiles and a sacristy on the north side.
Webpage wikipedia.org, Kaplica cmentarna św. Jadwigi w Byczynie.