Lillö Castle was built in in the 14th century among the natural defences offered by the inaccessible marshlands and the River Helge å. The first known owner was Åke Axelsson (Tott) in 1343. The castle belonged to Tott, Trolle and Huitfeldt families until it was destroyed in 1658–59. Today, displays inside the castle based on the finds made during various archaeological digs reflect life here in days gone by. Display panels in the courtyard provide information on the castle and its surroundings. A key is available from the Naturum Vattenriket visitor centre to gain admission to the castle.
References:Duino Castle was built by the Wallsee family in 1389 on the cliffs overlooking the Gulf of Trieste. It replaced an older castle from the 11th century. Over time, the Wallsee family disappeared and the castle, after having been used as a prison, became the residence of the Luogar and Hofer.
At the end of the 19th century it became the property of Prince Alexander von Thurn und Taxis from the Czech branch of the House of Thurn and Taxis. It remains with the family to this day with his great-grandson Prince Carlo Alessandro della Torre e Tasso, Duke of Castel Duino the current owner. The castle has been opened to the public as a museum and park.