The problem with this disambig is, Michael, that it links to events in history that barely can be called a "Polish invasion on Russia" - for instance as there was no Russia in today meaning of the word - and they show rather a Russian (Ghirlandajo's?) POV. Without any disclamer (term used in Russian historiography) a reader can think we claim that they were "Polish invasions on Russia" what is not exactly my view. ) That's the main problem and Ghirlandajo's insults and his weak explanations afterwards that he was understood wrongly (yeah, right) only make finding a good solution more difficult. Best,  δ