Kinizsi Castle, Medieval castle ruins in Nagyvázsony, Hungary.

Kinizsi Castle is a medieval fortress ruin located on a strategic hilltop in the Transdanubian region. The structure features high stone walls, defensive towers, and a central courtyard that overlooks the surrounding countryside.

László Vezsenyi obtained a castle-building permit from Queen Mary in 1384 and built the castle in the mid-1390s after abandoning Zádor Castle, including the 25 m residential tower. When his male line died out in 1472, King Matthias Hunyadi granted it to Pál Kinizsi, who added an outer square wall with four small towers, a palace wing and a barbican. In 1490 Habsburg claimant Maximilian's mercenaries occupied it, and Kinizsi retook it the following year.

The castle takes its name from Pál Kinizsi, who received it from King Matthias in 1472; the name Vázsony comes from the Vázsony kindred. His wife Benigna Magyar lived in the residence, and after a murder in 1519 she was sent into exile. The Zichy family, owners from 1649, had the chapel reconsecrated in 1727, when it was the village's only Catholic church.

The site is accessible on foot and best explored during daylight hours to fully appreciate the structures and views. Visitors should expect uneven terrain and stairs, so sturdy footwear is recommended.

The castle's fame comes from Pál Kinizsi, who received it from King Matthias in 1472. His wife Benigna Magyar lived here; in 1519 she had her third husband killed and his body thrown into the castle moat. The royal court spared her because of Kinizsi's merits and sentenced her to exile instead.