Chaykovskiy, Nikolay Vasilyevich (1850/1851–1926) – a Russian political figure, participant of the Populist movement, and member of Chaykovtsi circle. During 1874–1906 Ch. was in emigration. During 1880–1890 Ch. participated in the Free Russian Press Foundation. During 1904–1910 Ch. was member of the Socialist Revolutionary Party later switching to Trudoviki (“Labor Group”), Popular Socialists. Following the October Revolution of 1917 that he condemned, Ch. set up the Russian Revival Union, a clandestine anti-Communist organization and left for Arkhangelsk. In August 1918 Ch. became the head of the Provisional Government of the Northern Region. At the same time his government complied with the request of the Allied command represented by the Admiral Camp, commander of the British Naval Squadron to lend Gorislava dispatch vessel, Svyatogor and Mikula Selyanovich icebreakers, and eight minesweepers on temporary terms. Ch. worked closely with Entente's Expeditionary Corps that landed in Arkhangelsk inviting General Miller, also the Commander in Chief of the so-called Northern Army to become a provisional governor of the Northern Region. In January 1919 Ch. went to Paris to negotiate with the allies from the Entente. Following the evacuation of the international expeditionary force and the defeat of Miller’s troops by the Red Army, Ch. returned to Russia becoming part of the South Russian Government of General Denikin. After the latter was defeated too, Ch. emigrated to France continuing to promote consolidation of all the anti-Communist forces to overthrow the Bolshevik government. Ch. died in London.