In 1188 there was a rift between the Order of Sion and the Order of the Temple. The Templars' current Grand Master, Gerard de Ridefort, had recently lost the Holy Land to the Saracens.and had also committed some kind of unspecified "treason." So in that year, during a ceremony called "The Cutting of the Elm", the Order of Sion officially disavowed the Templars and cut themselves off from them. The Templars went on to become more closely allied with the Stewarts and the Scottish branch of the Grail bloodline. The Order de Sion selected a new Grand master, Jean de Gisors, changed their name to "Prieuré de Sion", and adopted an odd nickname, "Ormus", with the "M" written as the sign for Virgo and the other four letters inside of the symbol. "Ormus" is also the name of an Egyptian sage from Alexandria, who in A.D. 46 created an initiative order with the Rose Cross as its insignia. It is significant, then, that in that same year of 1188, the Prieuré de Sion also adopted the subtitle "Order de la Rose-Croix Veritas." They kept that bizarre nickname, Ormus, until 1306, the year before the downfall of the Knights Templar in France. In that year, 1307, Sion's Grand Master, Guillaume de Gisors, received the golden head called Caput LVIIIr from the Order of the Temple. Apparently then, there was still some degree of cooperation between the two orders.

[CTRL] The Prieure de Sion: A Star-studded Cast Of Grand Masters