Krumau Castle, locally known as Burg Krumau, lies in the village of Krumau am Kamp, west of the city of Horn in the province of Lower Austria in Austria. It sits beautifully on a rock near the center of the village next to the river Kamp.
Krumau Castle was first mentioned in 1172. The castle became the summer residence for Queen Margarethe of Austria after she was banished by her husband King Pfzemysl Ottokar II of Bohemia in 1261. She died here in 1267.
Later the castle was damaged during sieges, most notably in 1619. After which it was rebuilt in 1667/1668. From the 18th century on however, the castle fell to ruin.
From 1959 on the castle was partially rebuilt. It is now privately inhabited and in summertime one tower can be visited. The castle was closed when I visited it.