The Mark of Cain, or cross, symbolizes a hammer, for Cain was a Worker in Metals, which is what a practitioner of Alchemical Sorcery is called.
Philip Gardner in his book Secrets of the Serpent, in Search of the Sacred Past said this in regards to the birthmark and Templar the Mark of Cain and the Templar’s croix pattee:
And St. Paul himself in Galatians 6: 17 states, “Let no-one cause me trouble, for I bear on my body the marks of Jesus.” Is this the original mark of Cain, who we have found to be of the serpent tribe? The idea of this sign or mark is widespread once discovered.
“Whether a strict Latin or a Templar croix pattee, it is a memorable symbol, especially seen on a stark white background. Seen in relation to the ‘mark’of Cain or the Merovingian birth-mark, or even the Templar cross, they all seemingly relate one way or another to the snake.”
Mark Amaru Pinkham in his books the “Guardians Of The Holy Grail: The Knights Templar, John The Baptist and “The Return of the Serpents of Wisdom” said – Cain thus appears to be a name for the first Fisher King as Vulcan-Lucifer. Gardner claims that it was Cain’s infamous Mark that became the definitive symbol of the planetary lineage of Fisher Kings, so he was at least one of the founders of the lineage.
Volcan or Vulcan eventually found his way into the Hebrew pantheon as Vel’cain or Cain (meaning “smith” and “possessor of fire”) and as Lucifer or Azzazel, the “fallen angel” from Heaven, who taught the daughters of men the art of smithing.
“The Merovingian link to Vulcan-Lucifer was also implicit in a curious royal birthmark in the shape of a red cross, the ancient Mark of Cain, which a Merovingian was said to proudly display over his heart or between the shoulder blades.”
The American Red Cross uses The Mark of Cain.
“Ormus and his initiates had taken the red cross as their identifying symbol four centuries before Merovee (founder of the Merovingian Holy Grail dynasty) was born with the red cross birthmark above his heart. The Knights Templar adopted Merovee’s red cross six centuries later. To emulate the Templars, the Priory of Sion took the red cross of Ormus as its own emblem, then adopted the title l’Ordre de Ia Rose-Croix Veritas, which means “The Order of the mie Red Cross.” This additional name was added at the behest of Sion’s Grand Master, Jean de Gisors.Thus, Jean de Gisors is considered the founder of the Rose-Croix, or Rosicrucians.” – Scarlet and the Beast by John Daniel
“He (Merovee) was the first in a series of kings called the Merovingian bloodline. It is said that the offspring of Merovee were noted for a birthmark above the heart – a small red cross. This symbol eventually became the emblem of the Guardians of the Grail.” – Scarlet and the Beast by John Daniel