In the Galitzine Family book there is the following entry for Mstislav Alexandrovich Galitzine:
"Last member of the family to carry the Ostermann title. Entered the Corps de Pages before fighting the "Reds" with the Kolchak army as an officer. Left Russia by train to the East via Japan but eventually settled in France. He had a curious mind & was truly interested in others. He studied maths, engineering (with the Zeppelin Company), politics, economics & philosophy. Around 1930, with a Roumanian friend, he created an anti-Bolshevik club, which was vigorously attacked by L'Humanite, the French Communist newspaper. Later, because of his second wife, he joined Action Francaise, a rightist organisation. At the same time he helped another committee promoting the United States of Europe. He studied esoterism & philosophy with his Hindu Master. He knew, but disliked Gurdjiev, but esteemed Uspensky. He was able to fast for 40 days. At the core of Russian exiles in Paris, he was more interested in the present & the future. To make ends meet, he gave lectures on psychology, philosophy, esoterism, astrology & dream interpretation. He was a good chess player.
During World War II he lived in St. Jean de Luz, where he was arrested by the Germans for a time. When released he tried unsuccessfully to emigrate to USA with the help of his friend King Alfonso XIII.
By his second marriage he had a daughter, Maria ("Moussia")(1929-1998) who married the writer Raymond Dutherque."
The Ostermann title came to the Galitzine family in the 19th. century. Prince Valerian Mikhailovich Galitzine,(1803-1859) was involved in the Decembrists attempted coup of 1825. As a result he was stripped of his titles & reduced to the ranks with the army in the Caucasus. After serving there for many years in 1856 his title was restored to him by Imperial Ukaze. In 1857 he inherited the title Count Ostermann through his mother's brother, Count Alexander Ostermann-Tolstoy. A further Ukaze in 1863 permitted his son, Mstislav Valerianovich to pass the title on to his children by primogeniture.