context: It is possible to speak with full confidence about the existence of Rosicrucian organizations only from the beginning of the 18th century. In 1710, Silesian pastor Sigmund Richter, under the pseudonym Sincerus Renatus ("sincerely converted"), published a treatise entitled "Theoretical and Practical Theosophy. The true and complete preparation of the philosophical stone of the brotherhood from the Order of the Golden-Pink Cross ”[15]. In an essay consisting of 52 articles, Richter introduced himself as a member of this fraternity and reported that it consists of separate branches, each of which includes 31 adherents. The “emperor" rules the brotherhood; only masons in the degree of master are accepted into it [~ 2]. Two other milestones in the development of the 18th-century Rosicrucian doctrine are Georges von Welling's Opus magocabalisticum et theosophicum (1719, a review of the alchemy and teachings of Paracelsus) and Aureum Vellus oder Goldenes Vliess (1749, published under the pseudonym).
question: What was the alias of the alchemist Sigmund Richter?
answers.text: Sincerus Renatus