The Holy Blood and the Holy Grail, published as Holy Blood, Holy Grail in the United States, is a book written by Michael Baigent, Richard Leigh, and Henry Lincoln. It was first published in 1982 by Jonathan Cape in London as a follow-up to three BBC Two television programs from the Chronicle series. A paperback version was released in 1983 by Corgi Books. A follow-up book, The Messianic Legacy, was published in 1986. The original book was published again in 2005 with added illustrations and new material.

In The Holy Blood and the Holy Grail, the authors suggested an idea that the historical Jesus married Mary Magdalene, had children, and that these children or their descendants moved to what is now southern France. There, they married into noble families that later became the Merovingian dynasty. This dynasty claimed a special right to rule France, a claim supported today by a secret group called the Priory of Sion. The authors believed the legendary Holy Grail represents both Mary Magdalene’s womb and the royal bloodline she gave birth to.

When it was first released, The Holy Blood and the Holy Grail became a top-selling book worldwide. It caused people to become interested in many ideas connected to its main theory. However, many historians and scholars criticized the book, saying most of its claims, ancient mysteries, and conspiracy theories were not based on real history. Historian Richard Barber called the book "the most famous of all the fake history books about the Grail… which uses hints, not real debates, to support its ideas."

In a 1982 review for The Observer, novelist and critic Anthony Burgess wrote, "It is typical of my unchanging nature that I can only see this as a great idea for a novel." This idea was later used in Margaret Starbird’s 1993 book The Woman with the Alabaster Jar and in Dan Brown’s 2003 novel The Da Vinci Code.

Background

A book that helped shape the project was L'Or de Rennes (later published as Le Trésor Maudit), written in 1967 by Gérard de Sède with help from Pierre Plantard. After reading it, Henry Lincoln convinced BBC Two, a British television channel, to create a documentary series for their Chronicle program. The series became popular and received thousands of letters from viewers. Lincoln then worked with Michael Baigent and Richard Leigh to do more research. This research led them to the fake historical documents called Dossiers Secrets at the Bibliothèque nationale de France. These documents claimed to show hundreds of years of medieval history, but they were actually written by Pierre Plantard and Philippe de Chérisey using the name "Philippe Toscan du Plantier." Baigent, Leigh, and Lincoln did not know the documents were fake and used them as a main source for their book.

The authors compared themselves to reporters who discovered the Watergate scandal. They believe that only by using educated guesses and combining different pieces of information can you understand the true story behind historical events. They argue that relying only on facts is not enough to fully understand history.

Content

In The Holy Blood and the Holy Grail, authors Baigent, Leigh, and Lincoln claim that a secret group called the Priory of Sion existed. They say this group began in 1099 and had important leaders, including Leonardo da Vinci and Isaac Newton. According to the authors, the Priory of Sion aimed to restore the Merovingian dynasty, which ruled the Franks from 457 to 751, to power in France and Europe. The Priory is also said to have created the Knights Templar as its military and financial group.

The authors reinterpreted the Dossiers Secrets based on their own religious beliefs. They disagreed with Plantard’s earlier claim that the Merovingians were only descendants of the Tribe of Benjamin. Instead, they argued that the Priory of Sion protected Merovingian leaders because they were believed to be descendants of Jesus and Mary Magdalene, who were said to be related to King David. The authors claimed the Holy Grail represented both the womb of Mary Magdalene and the royal bloodline she gave birth to. They suggested the Church tried to destroy this bloodline and its protectors, the Cathars and the Templars, to ensure popes could rule without fear of being replaced by someone from Mary Magdalene’s family.

The authors included The Protocols of the Elders of Zion, an antisemitic and anti-Masonic text, in their story. They argued the text was based on the Priory of Sion’s plan to control Freemasonry and reshape church and state using secret Christian ideas. They claimed the original version of The Protocols had nothing to do with Judaism or an international Jewish conspiracy. Instead, it came from a Masonic group named after "Zion." The authors said the text was never meant for public release but was used to influence Freemasonry. They also claimed that after failing to gain support from Tsar Nicholas II of Russia, a man named Sergei Nilus altered the original text to create a false story in 1903. This story falsely accused a group called Papus of being part of a Jewish-Masonic conspiracy, while leaving some secret Christian ideas unchanged.

Criticism

The claims in The Holy Blood and the Holy Grail have been studied and criticized by many researchers over the years. Independent investigations by groups such as 60 Minutes, Channel 4, the Discovery Channel, Time Magazine, and the BBC have found that many of the book’s claims are not credible or can be proven. Pierre Plantard, in a 1982 radio interview on France-Inter, said:

“I admit that The Sacred Enigma (the French title of The Holy Blood and the Holy Grail) is a good book, but some parts are more fictional than factual, especially the part about the lineage of Jesus. How can you prove a family line that spans four centuries from Jesus to the Merovingians? I have never claimed to be a descendant of Jesus Christ.”

The “Priory of Sion documents” do not mention a Jesus bloodline. The connection between the Merovingians and Jesus is only a theory proposed by the authors of The Holy Blood and the Holy Grail. In the Conspiracies On Trial: The Da Vinci Code documentary, it was noted that the authors of The Holy Blood and the Holy Grail reinterpreted historical documents to suggest that the Merovingians were descended from Jesus, rather than from the Merovingian bloodline as originally claimed.

Pierre Plantard claimed the Merovingians were descended from the Tribe of Benjamin. However, The Holy Blood and the Holy Grail proposed a different idea: that the Merovingians were descended from both the Tribe of Benjamin and the Davidic line of the Tribe of Judah, as represented by the child of Mary Magdalen through a royal marriage. Historian Marina Warner, when the book was first published, stated:

“While it is not harmful to imagine that Jesus was married or that his descendants were figures like King Pippin or Charles Martel, the book spreads false claims and flawed reasoning. This approach misleads readers and undermines proper historical study.”

Historian Ken Mondschein criticized the idea of a Jesus bloodline, explaining:

“The idea that a family tree could remain small for 2,000 years is incorrect. In ancient times, many children died young, and even one illness or accident could end a bloodline. If one extra child survived each generation, the number of descendants would grow rapidly. However, if Jesus’s descendants married only among themselves, the family would eventually become too inbred to survive.”

Historian Richard Barber wrote:

“The Templar-Grail myth is central to The Holy Blood and the Holy Grail, which is a well-known example of a conspiracy theory in history. The book uses hints and suggestions rather than solid evidence or scholarly debate. Its arguments are built on assumptions and forced interpretations of limited facts.”

In 2005, Tony Robinson narrated The Real Da Vinci Code on Channel 4, which examined the claims made by the authors of The Holy Blood and the Holy Grail and later by Dan Brown. The program included interviews with people involved in the story. Arnaud de Sède, son of Gérard de Sède, said his father and Pierre Plantard created the idea of a 1,000-year-old Priory of Sion and called the story “nonsense.” The program concluded that the claims in The Holy Blood and the Holy Grail were based mostly on guesses.

Although the “Priory of Sion mysteries” have been proven false by journalists and scholars as one of France’s greatest 20th-century literary hoaxes, some people worry that books, websites, and films inspired by this hoax spread unfounded conspiracy theories. Others are concerned that these works promote ideas from far-right groups.

Robert McCrum, a literary editor for The Observer newspaper, said:

“There is a difference between historical evidence and the way some books present history. Many books on shelves are mistaken for real history, but they are not. They are more like a parody of real history. Unfortunately, this type of writing is becoming more common in modern history.”

Influence and similarities

The 2003 mystery novel The Da Vinci Code by Dan Brown includes ideas from the book Holy Blood, Holy Grail. In 2005, the authors of Holy Blood, Holy Grail, Michael Baigent and Richard Leigh, sued Random House, the publisher of The Da Vinci Code, for copying their work without permission. They argued that Brown used their research and that a character in the novel, named Leigh Teabing, had a last name that is an anagram of Baigent and looked like Henry Lincoln, another author involved in the original book. Brown also mentioned Holy Blood, Holy Grail as a major influence on his story. As a result, Baigent and Leigh later sued Dan Brown for copyright infringement, claiming their plot was stolen. However, a judge ruled in 2006 that their arguments were unclear and not supported by strong evidence. The trial increased sales of Holy Blood, Holy Grail, according to sales data. The court also stated that because Holy Blood, Holy Grail was presented as a work of historical speculation, its ideas could be used freely in fictional works without copyright issues.

Stewart Copeland, the former drummer of the band The Police, wrote an opera called Holy Blood, Crescent Moon, which was inspired by Holy Blood, Holy Grail.

The 2008 documentary Bloodline, made by filmmaker Bruce Burgess, explored the idea of a "Jesus bloodline" and other theories from Holy Blood, Holy Grail. Burgess claimed that an amateur archaeologist, using the name "Ben Hammott," discovered mummified bodies, including one said to be Mary Magdalene, in underground tombs near Rennes-le-Château, France. However, in 2012, "Ben Hammott" admitted the discovery was a hoax. He revealed his real name was Bill Wilkinson and said the tomb and artifacts were fake, with the set stored in a warehouse in England.