She became a journalist and a producer at the French Radio and Television (working under the name of Marina Grey).
She wrote several historical books about the Russian Civil War and her father, General Denikin.
In exile she married a French historian Jean-François Chiappe, getting the title of countess.
She met Russian president Vladimir Putin on several occasions during his visit to France and eventually gave her consent to transfer her father's remains from United States to Russia.
She last saw her homeland in October 2005, when the remains of General Denikin were repatriated and buried at the cemetery of Moscow’s Donskoy monastery.