I'm looking for the main library in this principality.
Principality of Andorra
Principality of Salerno was created in 851.
Principality of Göttingen was created in 1279.
Principality of Rügen ended in 1325.
Principality of Rügen was created in 1168.
Principality of Svaneti ended in 1857.
Principality of Guria ended in 1829.
Principality of Ryazan was created in 1129.
Principality of Ryazan ended in 1521.
Principality of Bulgaria ended in 1908.
Principality of Bulgaria was created in 1878.