Skokloster Castle built
1676 CE.
Shown on the map at 59.704°, 17.619°.
Skokloster Castle (Swedish: Skoklosters slott) is a Swedish Baroque castle built between 1654 and 1676 by Carl Gustaf Wrangel, located on a peninsula of Lake Mälaren between Stockholm and Uppsala. It became a state museum in the 1970s and displays collections of paintings, furniture, textiles and tableware as well as books and weapons that amount to 20,000 items.
Text from the Wikipedia article Skokloster Castle, licensed CC BY-SA 4.0.