Several legends were born about the ruins of this castle, which is situated north-east about 10 km from Praid. These legends inspired famous writers such as JókaiMór and MikszáthKálmán, but some scientific facts were explored only in the seventies of the last century. It is considered to have been one of the fortresses of the Gyepű-system (border guard system in the medieval Hungary) in the time of Saint Ladislaus such as the Castle of Tartód and Castle of Firtos.
The construction of Lady Rapson’s castle was started in the second half of the 13th century after and more likely due to the Mongol invasion of Europe. It was meant to be a community shelter. The contruction took several decades and the latest findings date back to the 14th century. That means that the castle was left after the invasion danger. The ring-shaped castle wall made of andesite surrounds a 100-meter long and 40-meter wide hilltop.
The artificial catchment basin in the middle of the castle was made for collecting rainwater. As there were no fountains and springs, this basin made long-term stays possible.The constructors of the castle at the end of the 13th century were most likely the Szeklers, which proves the assumption wrong, which states that with the royal administration being formed the constructors from that time were sent to East and they are actually the ancestors of the Csango people living alongside the Siret river. The ruins of Lady Rapsó’s castle are situated on a cliff which starts to ascend at the edge of Praid and gradually gets higher along the valley of “TârnavaMică”and “Nagyág”. According to the digging from 1974, the construction of the castle is estimated to date back to the 11th – 12th century.