In the cemetery of Saint-Briac, a French town in the Ille-et-Vilaine department, lie the graves of subjects of the Russian Empire. Here, from 1921 to 2006, the Russian imperial family lived in exile.

The first plot belongs to Lydia Haroldovna Graf (1909-1927), the daughter from the first marriage of the head of the Emperor's Chancellery in exile, Kirill Vladimirovich, Harold Karlovich Graf. Lydia was a childhood friend of Grand Duchesses Maria and Kira Kirillovna, as well as Grand Duke Vladimir Kirillovich. She died suddenly at the estate of the imperial family, "Ker Argonid."

Her father, Harold Karlovich Graf (1885-1966), was a rear admiral and head of the Chancellery of the Regent of the throne in 1924. He also headed the Office for the Affairs of the Head of the Russian Imperial House from 1938 to 1941. Graf, a naval officer of Finnish descent, was a classmate of Grand Duke Kirill Vladimirovich. In early 1922, he moved from Finland to Munich and soon joined the legitimist movement. In 1924, he effectively led the Chancellery of the Regent and participated in drafting the manifesto on Kirill Vladimirovich's acceptance of the imperial title. After World War II, Graf withdrew from active life and devoted himself to writing. He died in Pittsburgh, USA.

The second plot belongs to the Dvorzhitsky family. Georgy Konstantinovich Dvorzhitsky (1887-1962) was a colonel and head of the field chancellery of Grand Duke Vladimir Kirillovich from 1952 to 1962. He graduated from the Page Corps and the Academy of the General Staff, participated in the Civil War, and emigrated to the Kingdom of Serbs, Croats, and Slovenes. Dvorzhitsky was a musician and composer, the author of the march of the Imperial Army and Navy Corps. After World War II, he moved to Spain, then to France, where he continued to serve in the KIAiF. He died in Saint-Briac, and his wife, Ekaterina Sergeevna, born Countess Lamsdorf-Galagan, was buried next to him in 1970.