Title: Une mission diplomatique du marquis de Gallo á Saint-Petersbourg en 1799
Subjects: Career in diplomacy, Correspondence, Foreign relations, History
Places: Kingdom of the Two Sicilies, Russia, Italy, Naples (Kingdom), Sicily (Italy)
People: Marcello Mastrilli marchese di Gallo (1753-1833), Ferdinando I King of the Two Sicilies (IV of Naples) (1751-1825)
Time periods: 1789-1815, 18th century