×
Please click
here
if you are not redirected within a few seconds.
All
Images
Videos
Maps
News
Shopping
Books
Search tools
Any time
Any time
Past hour
Past 24 hours
Past week
Past month
Past year
All results
All results
Verbatim
Upper Oka Principalities
In Russian historiography the term Upper Oka Principalities traditionally applies to about a dozen tiny and ephemeral polities situated along the upper course of the Oka River at the turn of the 14th and 15th centuries.
Wikipedia