The Osireion at Abydos: What Is It, and How Old?

The Osireion is a sunken stone building behind the temple of Seti I at Abydos, built of massive red granite pillars and sandstone, and now partly flooded by groundwater. Most Egyptologists regard it as a cenotaph, a symbolic tomb of Osiris, built for Seti I around 1290 BCE in a deliberately archaic style. Some researchers argue that its granite core is much older and was incorporated by Seti’s builders.

By Jossef Salman · Last reviewed October 2026

How to read this page

Established: observed, measured, excavated or written in a source from the time. The only things we present as fact.
Mainstream theory: what most specialists currently conclude. Reported accurately, not endorsed.
Alternative theory: proposals outside or at the edge of mainstream scholarship. Contested, reported so you can see the debate.
The book’s view: the argument of Echoes of History, always labelled as the author’s own.

The Osireion at a glance

Question	Answer
Location	Abydos, Upper Egypt, directly behind (west of) the temple of Seti I
Construction	Massive red granite pillars and lintels in a central hall, surrounded by walls of sandstone and limestone
Setting	Built well below the temple’s ground level; groundwater now floods the lower parts
Excavated	1902–03 (Flinders Petrie and Margaret Murray), 1912–14 (Édouard Naville), 1925–30 (Henri Frankfort)
Inscriptions	Religious texts and scenes carved in the outer parts, with cartouches of Seti I; decoration completed under his grandson Merenptah
Mainstream date	Reign of Seti I, c. 1290–1279 BCE (19th Dynasty)

Abydos and Osiris

Abydos was one of Egypt’s holiest places. The first kings were buried there, and by the Middle Kingdom it was the main centre of the cult of Osiris, god of the dead and of resurrection. Egyptians believed the tomb of Osiris was at Abydos and made pilgrimages to take part in his festival. The temple of Seti I, famous for its fine reliefs and its king list of 76 earlier rulers, stands beside the Osireion.

The building

Visitors enter the central hall, an island of granite pillars surrounded by a water channel, a design many scholars read as an image of the primeval mound rising from the waters of creation. The outer rooms and passages carry religious texts, including the Book of Gates and the Book of the Dead, and astronomical scenes. Today the building lies below the water table, so much of it is flooded.

The mainstream view: Seti I’s cenotaph

Henri Frankfort’s excavations led to the view now held by most Egyptologists: the Osireion was built for Seti I as a cenotaph, a symbolic burial place associating the king with Osiris. Arguments include:

Cartouches of Seti I in the structure, and decoration completed under Merenptah.
Its alignment with Seti’s temple, which appears to have been planned around it.
Finds from Frankfort’s excavations, including inscribed material, which he associated with Seti’s reign.
The archaic style seen as a deliberate evocation of the age of Osiris and of Old Kingdom buildings.

The alternative view: an older structure

When Naville first exposed the central hall, he compared its plain granite architecture to the Valley Temple at Giza and suggested it might be among the oldest buildings in Egypt. Writers such as Graham Hancock have since revived that idea. Their arguments:

The central granite core is undecorated and very different in style from Seti’s temple.
It lies at a much lower level, close to the water table, which some argue reflects an older ground level.
Its megalithic style resembles Old Kingdom buildings at Giza.
Seti’s cartouches show the building existed in his reign; they do not, on their own, prove he built its granite core.

What is fact and what is theory

Claim	Status	Basis
The Osireion is a sunken granite and sandstone building behind Seti I’s temple	ESTABLISHED	Excavated and visible
It contains cartouches of Seti I and decoration completed under Merenptah	ESTABLISHED	Inscriptions recorded
It was built for Seti I as a cenotaph of Osiris	MAINSTREAM THEORY	Based on inscriptions, alignment and excavation
Its granite core is much older than Seti I	ALTERNATIVE THEORY	Proposed by Naville initially, revived by later writers; contested
The Osireion may be an older structure inherited by Seti’s builders	THE BOOK’S VIEW	A possibility discussed in Echoes of History

What the book argues · the author’s view

Echoes of History discusses the building’s water, its granite monoliths, the absence of inscriptions in the central hall and the dating question, and considers the possibility that Seti’s builders inherited an older structure, a pattern the author also sees at Giza and Saqqara. He presents this as a possibility, not a demonstrated fact.

Cover of Echoes of History by Jossef Salman

From the author of this guide

Explore this question in Echoes of History

The Osireion has its own chapter in Echoes of History.

Explore the book

Read a free sample

Frequently asked questions

What is the Osireion?

A sunken granite and sandstone building at Abydos, behind the temple of Seti I, regarded by most Egyptologists as a symbolic tomb (cenotaph) of Osiris built for Seti I.

How old is the Osireion?

The mainstream date is the reign of Seti I, about 1290 BCE. Some researchers argue its granite core is much older; that view is contested.

Why is the Osireion flooded?

It was built far below the surrounding ground level, and the groundwater table has risen since antiquity, so its lower parts are under water.

Who discovered the Osireion?

It was first identified in 1902–03 by Flinders Petrie and Margaret Murray and excavated further by Naville and Frankfort.

Is the “Flower of Life” at Abydos ancient?

The well-known flower-of-life drawings on a pillar in the Osireion are generally considered much later than the building, possibly Greco-Roman; their date is not securely established.