For those of you who are new to the mystery of Rennes-le-Château as well as those who are seasoned campaigners, you will know that this code is the largest and most complex of all the codes to be found in parchment 2. Recently I was contacted by Anton Schults who lives in the Netherlands and who has applied modern computer techniques to the decipherment of this code. The results are fascinating and shed new light on the way in which the code was made and how it should be decrypted. It also shows very clearly the entire process of decipherment which should make it easy for everyone to see just how it was done and if necessary to use this as a template for further study in this field. As a result this page has now been completely re-written to reflect these important changes. The original article of course, can still be read by those who wish to see the earlier decipherment process. Just click on the link above.

 

Decoding of parchment 2 

The manuscript

 The text contains four very clearly visible codes. These are composed of  additional characters, characters written in very small font, characters written above the line and characters written under the line. In this discussion we will only be concentrating on the code which is formed as a result of the additional characters. The other three codes are mentioned below, but no decryption has yet been applied to them.

 The extra characters in the text are not randomly added. On the contrary, they are accurately placed every 7 characters in the text. (note 4)

The code clearly consists of two groups of 64 characters, separated by the text “AD GENESARETH” (note 5).

 
The deciphering

The whole decyphering-process has been placed in one scheme which is probably the same way it was originally done.

It is a table, made from 2x64 cells, forming two chess-boards. Each cell in this table has the following composition: 

 

A = The original text from the manuscript

B = The text from the Blanchefort-headstone in reverse

C = The text “MORT EPEE” repeated

D = The result of de decyphering

# = The sequence-number of the knight-tour, in which sequence the result-text must be read.

 Now the decyphering-process is easy:

 1.       Take a chess-board of 64 squares

2.       Write down the three texts A, B, C

3.       Do the decyphering for each square placing the result in D

4.       Read the message in text D, in the sequence of “#”, starting with square #1 etc.

The decyphering itself was done by a technique invented by a mr. Vigenere in the 16th century, and is performed by using a matrix of letters as shown below. The technique is simple. In fact you have to add the occurrence number of two letters, the so called “cypher-text” (in our case the manuscript) and the “cypher-key” (in our case the headstone-text and the text “mort epee”) in the alphabet giving a third number, which corresponds with a new letter. Using the “Vigenere-matrix” shown below, it is simply done by looking up the two letters in the first row respectively the first column of the matrix, and reading the result where the lines cross.  

For example: in the first square, the manuscript give the letter “V” (This is placed in position A), the headstone-key reads a “M” (placed in position B). Where the row “M” and the column “V” cross each other, one can read a “J” via the Vigenère alphabet.

Because of the fact that we are using two keys instead of one, we have to repeat the process. Then we use the result of the first decyphering (the “J”) in combination with the second key, a “M” (position C). Then the result reads a “X”. So the result of this action is an “X” at position D.

 Doing this with each square reveales the whole text in a very simple and quick way.

 Note: it is believed that this process has a relation with a sentence in the “sot pecheur” document, as you may well know: “…turned twice on the grill…”. The grill is the Vigenere-matrix, turned twice means used with two keys.

 The result

 In the picture of the manuscript  I have marked the letters of the text red.

Now you can clearly see the 7-character within it. Errors in the manuscripts are coloured blue.

The decyphered text reads:

BERGETE PAS DE TENTATION QUE POUSSIN TENIERS GARDENT LA CLEF SLXDCLXHXI PAR LA CROIX ET CE CHEVAL DE DIEU JACHEVE CE DAEMON DE GARDIEN A MIDI POMMES BLEUES

We can also easy check the manuscript-text and the headstone-key. The have all been double-checked and as far as there seem to be no errors in it.  

But as you can see, the result still differs from the well-known translation in three letters, which are shown here in red in the table and the text, and circled in green on the manuscript. It's very difficult to tell what is wrong and herein lies riddle. If you look at the places in the manuscript where these three letters occur, they are actually very clear and it is hard to mistake them for anything else. As you will know the final deciphered message is a perfect anagram of the Blanchefort headstone with the addition of a further 9 letters (PSPRAECUM). With the letters we have here it is clear that we do not have a perfect anagram. This leads us to the inescapable conclusion that the manuscript is a reproduction. It was at some stage in its life copied and that the author, although generally very accurate, made these three little mistakes. This fact opens up a whole new area of debate  and the first question one must ask is why copy this information? Also if this was copied from another document, then perhaps not all the information on the original was transferred.  Finally, in the original decipherment of this message we were presented with a clear piece of French text. However even they would have found the same three letters and it is obvious that they simply substituted the correct ones in order to produce a readable text. The deeper significance appears to have been missed.

This is The Vigenere-matrix: 

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A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

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T

U

V

X

Y

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A

B

C

D

E

F

G

H

I

J

K

L

M

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O

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T

U

V

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Y

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A

B

C

D

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F

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J

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M

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V

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J

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J