Malachi Brendan Martin, also known under the pseudonym of Michael Serafian, was an Irish-born American Traditionalist Catholic priest, biblical archaeologist, exorcist, palaeographer, professor, and writer on the Catholic Church.

The Three Secrets of Fátima are a series of apocalyptic visions and prophecies reportedly given to three young Portuguese shepherds, Lúcia Santos and her cousins Jacinta and Francisco Marto, by a Marian apparition, starting on 13 May 1917. The three children claimed to have been visited by the Virgin Mary six times between May and October 1917. The apparition is now popularly known as Our Lady of Fátima.