Ura! That's fascinating. SO we now have at least two reburials of Napoleonic era Russian generals. (See my article here on Ivan Semyonovich Dorokhov).
I recall also that there is a tomb of an Infantry COrps commander inside the walls of Moscow's Novodevichy Monastery, and Bagration and several others are reportedly buried at Borodino. Bagration and one other at the large redoubt and a third in one of the fleches.
Robert A. Mosher