Monaco Cathedral

This dazzling white facade belongs to the Cathedral of Our Lady Immaculate. It looks old, yet it is fairly young: built between 1875 and 1903 in a Romanesque Byzantine style, with white stone quarried at La Turbie, up in the hills. It replaced a thirteenth century parish church dedicated to Saint Nicholas, and some of its treasures were kept. The most precious is a large altarpiece painted around 1500 by Louis Bréa, the master from Nice, with golden backgrounds and solemn saints. As you walk around the choir, you pass the tombs of the princes. Many visitors pause at a very simple slab, often covered in flowers: that of Princess Grace, who died in 1982, and right beside it, that of Prince Rainier III, who died in 2005. They were married here in April 1956, in a ceremony broadcast around the world. On Sundays, listen to the organ and the choir, which fill the nave with a remarkable sound.

History

Since 1252 this spot had been occupied by the Church of Saint Nicholas, the parish church of the Rock. In the 19th century Prince Charles III decided to replace it with a building worthy of the principality. The old church was demolished in 1874 and the first stone of the new one was laid on 6 January 1875. Work was completed on 12 November 1903 and the cathedral was consecrated in 1911, dedicated to Our Lady of the Immaculate Conception.

In 1981 an agreement signed at the Vatican raised the diocese of Monaco to an archdiocese. The cathedral hosts the great services of the Monegasque year, notably Saint Devota’s Day on 27 January and the National Day on 19 November.

Art and architecture

The style is Romanesque-Byzantine, and the materials come from across the region: white stone from La Turbie, red and blue porphyry from the Esterel, granite from the Vosges and Biella, marble from Carrara. The nave is 72 metres long. In the upper windows the stained glass shows women of the Old Testament, and in the side aisles, scenes from the lives of Jesus and Mary.

The treasures come from the old church. The altarpiece of Saint Nicholas, painted by Louis Bréa of Nice in August 1500, has 18 panels. Look also for the Pietà altarpiece of the priest Teste, dated 1505, and two works attributed to the workshop of François Bréa. The choir holds a high altar inlaid with mosaic and a bishop’s throne in white Carrara marble.

Anecdotes

In the lane beside the building, a bell from the old Church of Saint Nicholas, cast in 1484, rang in 1641 for Monaco’s liberation, when Prince Honoré II drove out the Spanish garrison.

On 19 April 1956 the religious wedding of Rainier III and Grace Kelly was broadcast on Eurovision and watched by some 30 million viewers. Both now rest in the ambulatory, among most of the dynasty’s buried princes, from Albert I to Louis II.

Another landmark date: on 28 March 2026 Pope Leo XIV visited the cathedral, during the first papal journey to the principality since that of Paul III in 1538.

What to look for

Walk round the choir through the ambulatory to read the princes’ names carved on the slabs. Three chapels deserve a stop: that of the relics of Saint Devota, patron saint of Monaco, that of Saint Roman, and that of the Blessed Sacrament, where the bishops are buried.

Turn back towards the entrance: the great organ, rebuilt by the Belgian firm Thomas and inaugurated in December 2011, has 4 keyboards, 79 stops and about 7,000 pipes. Plexiglass panels in its front can be lit to translate the colour of the sound into light.

Practical

The cathedral stands at 4 rue du Colonel-Bellando-de-Castro, a 5-minute walk from the Palace Square. It is a working place of worship: modest dress and silence are expected, and visits pause during services.

For opening times, check the website of the Archdiocese of Monaco or visitmonaco.com. On Sundays, Mass is a chance to hear the organ and, on some days, the Maîtrise choir, founded in 1904, or the Little Singers of Monaco, created in 1974.

Nearby

When you leave, head down to the Saint-Martin Gardens just behind, then on to the Oceanographic Museum. The Chapel of Mercy, on the Town Hall square, completes this religious walk on the Rock.

Organ lovers will note that the first great organ in the gallery, installed in 1976 by the builder Jean-Loup Boisseau, was designed with the organist Pierre Cochereau and Canon Henri Carol, its first titular organist. Since 1 January 2006 the titular organist has been Olivier Vernet, whose concerts and recordings are a fine way into this instrument.

Test yourself

Sources

• Wikipédia : Cathédrale Notre-Dame-Immaculée de Monaco
• Wikipedia: Cathedral of Our Lady Immaculate

Information checked on 30 September 2026.