The Sivý Kameň castle was built in the first half of the 14th century on the initiative of John, Bojnice castellan. It protected the royal estates in the Upper Nitra valley and the trade route running from Nitra to Turiec and further to Poland. It was mentioned for the first time in written sources in 1352. On behalf of the king, the Bojnice castellans managed it since 1388, then it was in the possession of a few noble families. In 1434, King Sigismund of Luxembourg gave it for loyal services to the Majteniovski family who had wielded Sivý Kameň until the 18th century. In 1524, the castle was partially destroyed by a fire, but it was rebuilt. In 1626, soldiers of Gabor Bethlen captured it and robbed. Since then, it was no longer inhabited, served only as a warehouse and a prison. At the beginning of the 18th century, Rakoczi’s army occupied it, and later castle served the local population as a free source of building materials.
To build a small castle, the top and slope of a rocky, alone standing hill were used. It consisted of a residential building reinforced with a buttress and a square tower on the south side, in the highest part of the rock. These two buildings were surrounded from the north and east by a defensive wall connected to the rock blocks. In the eastern part there was a small four-sided tower protruding entirely in front of the face of the wall, and in the north-west curtain an entrance gate in the form of a simple wall opening. The gate was protected by a horseshoe-shaped tower placed on a rocky promontory on the north side.
In the 16th century, the castle was enlarged by adding an outer bailey on the west side. It had the form of an oblong courtyard, on one side surrounded by a wall and on the other protected by the older upper castle wall and landform. An access road to the upper part of the castle led inside the outer bailey. It began in the south in a narrow passage marked out by a curtain of the wall on one side and a rock wall from the other. Around the middle of the outer bailey the passage to its economic part was protected by a quadrilateral gatehouse, behind which the passage widened into a slightly larger courtyard. In its northern part there were some buildings with cellars.
The castle has not survived to modern times, only small relics have survived, which have not been demolished. Admission to the rocky hill is open to the public.
Bóna M., Plaček M., Encyklopedie slovenských hradů, Praha 2007.
Wasielewski A., Zamki i zamczyska Słowacji, Białystok 2008.