
1) Castle in Russia
Found on
https://www.crosswordclues.com/clue/shlotburg

Shlotburg (Slotburg, Schlotburg, Шлотбург) was the name given by Peter the Great to Nyenschantz, a Swedish fortress of the 17th century. The name was sometimes used to denote all the downstream settlements and villages along the Neva River (including Saint Petersburg and the Peter and Paul fortress). ==History== The first written reference...
Found on
http://en.wikipedia.org/wiki/Shlotburg
No exact match found.