here is no certainty as to the time of construction of the castle on Mount Sobień. Although neither Jan of Czarnków nor Jan Długosz mention it, some are inclined to the hypothesis that it was erected during the reign of Casimir the Great. However, there is certain information about the granting of the castle (probably already existing) at the end of the fourteenth century by Władysław Jagiełło to the Kmitas of the Szreniawa coat of arms. At the turn of the fourteenth and fifteenth centuries,
Woodcut, Kłosy 1876 from the collection of the Library of the Institute of Literary Research of the Polish Academy of Sciences
they erected a strong fortress on the plan of an irregular quadrangle. The residential wing was located in the lower part of the complex, along the south-eastern section of the walls. At the highest point - in the north-west corner - in the place of the earlier tower protruding beyond the perimeter of the walls, a rectangular gatehouse with dimensions of 7.1x7.8 meters was erected. From the north-east there was a small outer bailey. However, the stronghold did not serve its owners for long. Already in 1474, after the invasion of the Hungarians, it was damaged, and in 1512 the Kmita family finally moved their family residence to Lesko. During World War II, at the foot of the medieval castle walls, the Russians erected a bunker, which was part of the so-called Molotov Line created in 1939-1941 along the right bank of the San River. Currently, the remains of the castle have been secured as a permanent ruin.