The finery of the interiors was being preserved till 1919, and in 1941 the Palace was destroyed and reconstructed in the 1960s.
The Palace is two-storied, the Main rooms were on the ground floor, the Private appartments were on the 1st floor.It's interesting that GD Nikolay Mikhailovich (eldest son the GD Mikhail ) had the most of own rooms on the 1st floor while his brothers GD Mikhail Mikhailovich had only 2 rooms (Reception room and Bedroom), GD Georgiy Mikhailovich had 5 rooms, GD Alexey Mikhailovich (who died young) had 5 rooms and the famous Sandro aka GD Alexander Mikhailovich had only 1 room (Bedroom) as he was a rare guest at home.
I have a floorplan of the ground floor, if someone would like to see it, I'll post.