Östanå estate is mentioned in 1433 when it was owned by Anders Isaksson Baner. Since them it has been a residence for Fleming and Wrede families. The wooden main building from 1680s was burnt down by Russian army during the Great Northern War in 1719. The current manor house was built in 1791-1794 by Simon Bernhard Hebbe.References:
The Château Comtal (Count’s Castle) is a medieval castle within the Cité of Carcassonne, the largest city in Europe with its city walls still intact. The Château Comtal has a strong claim to be called a 'Cathar Castle'. When the Catholic Crusader army arrived in 1209 they first attacked Raymond-Roger Trencavel's castrum at Bèziers and then moved on to his main stronghold at Carcassonne.
The castle with rectangular shape is separated from the city by a deep ditch and defended by two barbicans. There are six towers curtain walls.
The castle was restored in 1853 by the architect Eugène Viollet-le-Duc. It was added to the UNESCO list of World Heritage Sites in 1997.