Верховный тайный совет
Chief Administration Documents of Russia (17th – 18th centuries) are kept in private funds of the Monarchs“ Chanceries – Secrete Documents (introduced by Alexey Mikhaylovich in 1658), Cabinets of Pyotr I (1694 — 1727), Ekaterina II (1762 — 1796), Pavel I (1796 — 1801); Secretary of State Offices (1699 — 1718), Supreme Privy Council (1762 — 1730), the Governing Senate (1711 — 1917), Senate and Synodal Institutions. Among the materials of the State Archive of Russian Empire one can find documents of political investigation, supervision agencies – Preobrazhensky prikaz (an establishment that oversaw Russian Preobrazhensky and Semyonovsky regiments in the 18th century, 1686 — 1729), Secrete Chancery (1718 — 1726) and Secrete Expedition of Senate (1762 — 1801), secrete prosecution commissions of the 19th century.