Prince Wandalin Puslovsky inherited Kossovo and started building the residence in 1838. The project was supervised by its author – the architect from Warsaw Franciszek Jaszczold. The splendid interior design was created by the architect Wladyslaw Marconi and the painter Franciszek Zmurko.
After decades of magnificence the palace fell on hard times. Wandalin Puslovsky’s son Leon sold the estate by lucking out at cards. The palace had no permanent owner since then. During World War One various valuables, collections of rare manuscripts and pictures were gone. The garden and the greenhouse were destroyed.
A German commandant's office was located in the palace during World War Two, with a ghetto situated nearby. The palace was burnt from within when the German troops withdrew in 1944…