Happy easter for you too Joanna!
I´m doing it quickly and quoting from russian,french and english so please forgive any mistake....
Olga Valerinovna Karnovich (was granted the title of Princess Paley by Nicholas in 1915) had lived in exile with the Grand Duke Paul in Paris up to 1912, when they were allowed to return to Russia. The Princess comissioned the palace in that year and was done in french style, inspired by their former residence in Boulogne-sur-Seine. The palace was not finished(although they settle down and was fully furnished, i suppose the only thing lacking are the ceiling paintings...) becayse of the outbreak of the wwi, and the french artisans were repatriated in 1914. The princess was very proud of this fact, as i recall the following anecdote:
Being under house arrest in September 1917 a soldier said her:
"And to think that all these fine dwellings have sprung up on our backs, at the sweat of our brows..."
She then answered proudly:
"You are mistaken. This house was built and decorated by French workmen. You would never have been able to do so well."
After many searches and the grand duke imprisonment they had to move to the nearby cottage belonging to Grand duke Boris in 9 January 1918.
In this same month the palace was opened as "Museum of the People"(twice a week people could visit it), a measure taken by Alexander Polovtsov and Georges Loukomsky to save it from the looting that the nearby Vladimir Palace had already suffered. The princess cooperated on this task and shew her house to the comission sent for this purpose. The outstanding french art collection was then saved and she was even offered by the bolsheviki to be the curator and to live there in some service rooms. She hesitated and finally declined the offer, not wanting to have nothing to do with the same people that had arrested her husband and were ruining her country.
Afterwards the palace was nationalised.
My guide book dates from that short period the palace was opened. I say short because it worked from 1918 up to 1926. In June-July 1929 the collection was sold by auction in London. The princess tried to stop the sale but was unable. She posed sadly in the uction showroom sitting by her beloved clavecin, formerly belonging to Queen Marie Antoinette.
...I will continue...