Stenberga was an ancient castle built probably in the 14th century. It was fist mentioned in 1389 and built probably by Jakob Abrahamsson, the bailiff of Turku. In 1438 the castle was donated as the site for Naantali Bridgettines Abbey, but in 1443 the abbey was decided to move to the Ailos. The castle was located to the rock hill near Masku River. There has probably been a 13 x 13m tower made of stone.References:
The Château des ducs de Bretagne (Castle of the Dukes of Brittany) is a large castle located in Nantes. It served as the centre of the historical province of Brittany until its separation in 1941. It was the residence of the Dukes of Brittany between the 13th and 16th centuries, subsequently becoming the Breton residence of the French Monarchy. Today the castle houses the Nantes History Museum.
The restored edifice now includes the new Nantes History Museum, installed in 32 of the castle rooms. The museum presents more than 850 objects of collection with the aid of multimedia devices. The castle and the museum try to offer a modern vision of the heritage by presenting the past, the present and the future of the city. Night-time illuminations at the castle further reinforce the revival of the site. The 500-metre round walk on the fortified ramparts provides views not just of the castle buildings and courtyards but also of the town.