The Château de Montbrun is a castle in the commune of Dournazac in the Haute-Vienne département of France.
Though rebuilt in the 15th century, it still has the moat, high walls and a square keep topped with machicolations.
Its narrow romanesque keep, 40 metres (131 ft) square, close up against one of the towers, gives it a strange appearance.
In 1562, Montbrun was attacked by Protestants during the Wars of Religion and although it was not captured a fire raged through the castle.
During the French Revolution, at the instigation of people's representatives Borie and Jacques Brival, the castle was pillaged and destroyed and the archives were burned.