https://en.wikipedia.org/wiki/Alta_Vendita
The Alta Vendita were a lodge of the Carbonari,[3] who used the book to announce their objective to spend decades overthrowing the Papacy.[4] Many participants in the instruction posed as various Catholic figures to make their way into the church.[4] The book was issued to every Carbonari lodge under the signature of "Nubius", thought to be the pseudonym of the supreme leader.[4]
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The document details an alleged Masonic plan to infiltrate the Catholic Church and spread liberal ideas within it.[5] The Carbonari had strong similarities to Freemasonry and so the document is seen by some as a Masonic document. The Carbonari had ties to the Freemasons, who are known for their Anti-clericalism. The author, who wrote under the pseudonym "Piccolo Tigre" has been found to be the author of other Masonic documents in the 19th century.[6]