The Count of Saint Germain (1693-27 February 1784) was an enigmatic character, described as a courtier, adventurer, inventor, alchemist, pianist, violinist, and amateur composer, known to be a recurring figure in several occult-themed stories.

Some sources cite that, in reality, the famous French nickname comes from the Latin Sanctus Germanus, that is, Holy Brother. Other sources believe that he adopted the name from the town of San Germano in Italian Tyrol, where his father had possessions. Although it is not known where he was born, it is most likely that he was in a castle in the Carpathian mountains, the son of the last Transylvanian prince, Francisco Rákóczi II, and his first wife Teleky. Despite this, his death is recorded on February 27, 1784 in Eckernförde (Schleswig). His story is written in The Very Holy Trinosophy — better known as The Holy Trinosophy. That is the only book he wrote; therefore, the other books attributed to him are apocryphal. He was part of Freemasonry. Although he was not against the monarchy of France, the advice that he gave in that court to try to avoid the revolution was not taken into account.