The discovery of the tomb of Isoret, as documented by Jean Riolan the Younger, has long puzzled both historians and scientists. Found in the suburbs of St. Germain, the tomb was said to contain the remains of a giant, measuring an impressive 20 feet tall—more than twice the height of a professional basketball player. Let’s explore the significance of the discovery site, while also assessing the credibility and contributions of Jean Riolan.
A Scientific Pioneer of His Time

Jean Riolan the Younger (1577–1657) was a distinguished 17th-century French anatomist and physician, whose groundbreaking work shaped the understanding of human anatomy. As a professor of anatomy at the University of Paris and royal physician to Louis XIII, Riolan’s writings, including Anthropographia and Opuscula Anatomica, were highly regarded and significantly advanced medical knowledge during his era.
A Remarkable Discovery

According to Riolan’s report, the tomb of Isoret was found near St. Germain. Inside, a skeleton measuring 20 feet tall was uncovered, making it a remarkable find. St. Germain-en-Laye is a commune known for its historical and cultural heritage. This region has been the site of numerous archaeological discoveries, offering a rich historical backdrop for Riolan’s claim.
Reports of giant skeletons were not uncommon during Riolan’s time. In 1509, for instance, a skeleton over 18 feet tall was reportedly unearthed in Rouen. Similar accounts, ranging from Sicily to Bohemia, emerged from the 16th to 18th centuries, leaving historians to question the line between myth and reality. These reports, including Riolan’s, give us a glimpse into a past filled with mysteries that still intrigue modern scholars.
A Historical Epicenter of Mystery

St. Germain-en-Laye is a commune west of Paris, famed for its rich history, including the Château de Saint-Germain-en-Laye, the birthplace of King Louis XIV. Louis XIV, often referred to as “Louis the God-given” due to his birth after a 23-year wait for an heir, was born there in 1638. With its deep connections to French royalty and nobility, it’s tantalizing to imagine that the giant found in the tomb might have been linked to the nobility. While no concrete evidence exists to support such a theory, the area’s archaeological significance cannot be ignored.
The Legacy of Riolan: Credibility and Intent

As a respected scientist and physician, Riolan’s work was based on the most advanced evidence and methodologies available to him. His account of Isoret’s tomb adds to his scientific legacy, and it seems unlikely that he would risk his reputation by fabricating such an extraordinary claim. Riolan’s motivations were likely centered on advancing scientific knowledge, and while modern science would require more substantial proof, we must consider his findings within the context of his time.
A Giant’s Legacy

The tomb of the giant Isoret, as reported by Jean Riolan, remains an intriguing piece of historical ambiguity. Placing this discovery within its cultural and historical context, alongside numerous other similar reports from the era, offers a fascinating glimpse into the past. While modern science seeks to verify these claims with advanced tools, it is crucial to respect the contributions of historical figures like Riolan and to understand that their work was as true and accurate as they believed in their time.
And in this final image, we see just how monumental the surrounding architecture of the tomb must have been, with small figures leaning against an archway built for giants.



