Concept
Version 3
Created by Boundless
The Time of Troubles
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Michail I Romanov."
https://en.wikipedia.org/wiki/Michael_I_of_Russia#/media/File:Michail_I._Romanov.jpg
Wikipedia
CC BY-SA 2.5.