Proshaberd, Medieval castle in Vayots Dzor region, Armenia.

Proshaberd is a medieval castle perched on a mountain summit in the Vayots Dzor region, built with solid basalt walls. The ruins reveal remains of various structures buried beneath soil layers, including residential areas, storage facilities, and defensive positions.

Proshaberd was built in the 13th century by Prince Prosh Khaghbakian of the Khaghbakian (Proshian) dynasty and served as his seat. The Armenian historian Stepanos Orbelian gave the first mention of the fortress, in connection with Atashkhuga's campaign. A reference to the castle survives in a 1475 Gospel illuminated by Abraham, which names Boloraberd near Tanat-Gladzor Monastery.

Locals call the fortress Prosha Berd, after Prince Prosh, and the name Boloraberd comes from bolor, 'round', and berd, 'fortress'. A 1475 Gospel manuscript by the illuminator Abraham records Boloraberd near Tanat-Gladzor Monastery. A chapel stands on the eastern side of the summit.

The site is hilly and requires sturdy footwear and time to explore scattered ruins across the hilltop. The mountain is wind-exposed and exposed, so bring sun protection and weather-appropriate clothing.

Local legend says the Persian khan, unable to find the fortress's water channel, kept a mule thirsty for seven days and released it; the animal dug at the buried pipe, letting the besiegers cut the supply and force the garrison to surrender.