The 30-metre-tall "Bartek" measures 13,5 metres round its girth near the ground and its circumference at breast height is about 40 metres. The legend states that Jan III Sobieski, who rested under this tree on his way back from Vienna, hid a Turkish sabre, a harquebus and a bottle of wine inside the oak.
Project Treasures of Nature is cofinanced by The National Fund for Environmental Protection and Water Management