The Iron Crown as a Work of Art

A unique diadem of gold, enamel and precious stones: the only one of its kind in the world

Considered a unique masterpiece in art history, it appears as a golden diadem made up of six rectangular plates adorned with cabochons of garnets, blue sapphires, and amethysts.

Each plate is divided into two parts: a vertical row of three gems and a rectangular section with four golden rosettes, a central cabochon, and four enamelled plates.

The vibrant colors of the plates are also achieved through the alternation of various enamels depicting floral motifs: the white and deep blue are opaque, while the translucent emerald green and reddish-brown backgrounds allow the golden base to shine through.

The small dimensions (only 48 cm in circumference) are also a hallmark of its uniqueness. Originally, the Crown may have been larger, with two or even three additional plaques, probably mounted where the regular sequence of the individual plaques is interrupted by the two vertical elements that meet.

Despite the thorough scientific studies conducted, the Crown remains a mystery: its exact dating, which does not date back to the Carolingian era but may be much older, its craftsmanship, and its origin before arriving at the location universally recognized as Monza.

Science has also been asked to investigate the sacred and symbolic aspects.

The iron ring, considered by the Church to be one of the nails of Christ’s Passion, is made of silver, but, with intelligent caution, it has not been ruled out that it could still be classified as a relic by contact.

The Crown is therefore the ultimate result of the dialogue between science, history, and faith.

From the Museum’s Bookshop
PERCORSI
Museo e Tesoro del Duomo di Monza
Elisa Pontiggia, con contributi di Lisa L.A. Colombo e Francesca Frigerio
Ed. Fondazione Gaiani (giugno 2024)
go to the Bookshop
Reviews Visitors on
News from the Museum

The Head of St. John. A journey through faith, history and art

On Sunday, March 2, 2025 at 11 a.m. in Rosone Hall, the second lecture of…

Read more...

Stefano de’ Fedeli: aspects of the Lombard Renaissance

On Sunday, the 9th of February , 2025 at 11.00 in the Sala del Rosone…

Read more...
More news...
The visitors of the Museum

“A wonderful place to get lost and travel back in time to know the History”

Davide Downburst

One of the most beautiful museums on the planet

One of the most beautiful museums on the planet: seen three times in three different periods of my life, it contains a UNIQUE collection of authentic Lombard wonders (the famous iron crown is only one!). Extraordinary.

Vittorio Maria Savoldelli

A dive into the history of Lombardy’s Middle Ages

Excellent museum, very interesting.
You can see the iron crown only accompanied, the guide is competent and friendly. A dive into the history of the Lombard Middle Ages.

Gianluca Agostoni

It hides real treasures related to the history of Italy

The museum is really well maintained and hides real treasures related to the history of Italy.
Highly trained guides who make the visit even more interesting.

Fabrizio Guccione

A beautiful story of Monza

Pleasant museum. In modern hypogei spaces unfolds a beautiful story of the history of Monza through the place prince of its history: the Cathedral. One tip: the visit to the Iron Crown is guided. Check the times and book.

Paolo Beria

The chapel is a masterpiece of international Gothic

A wonderful and unique collection of Lombard and late Antiquity art. The chapel is a masterpiece of international Gothic. You can visit only the museum and/or guided view on a chapel reservation and iron crown. Do both!

more reviews on
Museum and Treasury of Monza Cathedral
This website uses technical and profiling cookies to allow you to use it in the best possible way. You can accept, reject or choose cookies by pressing the desired buttons. By closing this policy you will be able to continue browsing without accepting, but with some limitations.