When Princess Charlene stepped onto Spanish soil on Monday, it marked her first official visit to the country since marrying Prince Albert II in 2011 — a personal milestone that sits quietly alongside a much longer story.
Monaco and Spain have been bound by alliance, marriage, military cooperation and mutual ambition for over five centuries, and this two-day visit to Madrid marks 150 years since the formal establishment of Monaco’s diplomatic mission in Spain, as well as the 10th anniversary of the Spanish branch of the Prince Albert II of Monaco Foundation.
The relationship between these two states is rarely told in full. It deserves to be.
From the Reconquista to the Rock
The historical ties trace back to 1349, when the Grimaldis — having established themselves on the Rock half a century earlier — are recorded as having responded to a call from Pope Clement VI to support King Alfonso XI of Castile during the Reconquista. This early military solidarity laid the groundwork for a far deeper political entanglement.
By 1524, following the assassination of Lucien Grimaldi and faced with an absence of French support, Augustin Grimaldi placed Monaco under the protection of Emperor Charles V, transforming the Principality into a strategic Mediterranean foothold against French interests. The strength of this bond was demonstrated in 1529, when the Emperor spent four days in Monaco, cementing a personal trust between the two powers. The formal alliance was consolidated in 1532 with the appointment of the first dedicated Spanish resident, Francisco de Valenzuela.
During the 117 years of the Spanish protectorate that followed, the integration of the two cultures was profound — frequent marriages between Spanish soldiers stationed on the Rock and local women left a lasting demographic and linguistic mark on Monaco’s population.
The protectorate ended on the night of 17th November 1641, when Prince Honoré II expelled the Spanish garrison and pivoted Monaco’s protection toward France. Yet the aristocratic ties persisted. By the mid-18th century the Grimaldi family had acquired the prestigious Spanish title of Grande de España, cementing their place at the highest levels of Iberian nobility.
Albert I and Spain’s seas
The 19th century gave the relationship a more personal character. In 1866, the future Prince Albert I — who would become known as the Navigator Prince — joined the Spanish Royal Navy as an ensign at the age of 18, traversing the Atlantic aboard the training frigate Teutan before serving on the Gerona, sailing to Cuba, Puerto Rico and the United States. He would later describe Spain as his “second homeland.” His ties to the country went beyond the maritime — he collaborated with conservationist Pedro Pidal to promote nature reserves in the Pyrenees and supported the scientific study of the prehistoric caves of Altamira.
The connection between the two courts reached a symbolic peak in 1958, when Queen Victoria Eugénie of Spain stood as godmother at the baptism of Prince Albert II.
Formal diplomatic ties continued to deepen. The Monaco legation in Spain, established on 14th July 1876, was elevated to embassy status in 1991. Throughout 2026, the anniversary year has been marked by tours of Spain by the Monte-Carlo Philharmonic Orchestra and the Monte-Carlo Ballet, alongside culinary events at the Café de Paris in Monaco showcasing Spanish traditions.
Monday in Madrid
Prince Albert II met with King Felipe VI at the Zarzuela Palace on Monday morning for a working meeting and private lunch, before holding an audience with Prime Minister Pedro Sánchez at the Moncloa Palace. That evening, the Princely Couple joined King Felipe VI and Queen Letizia at the Royal Botanical Garden of Madrid for the inauguration of two exhibitions at the Villanueva Pavilion: Monaco and Spain: Five Centuries of Shared History, drawn from the Palace Archives, and the 8th edition of the Monaco Artists Forum.
On Tuesday, Prince Albert II will conclude the visit at IE University, delivering the keynote address at a conference titled Leading the Future Through Collaboration: Talent, Innovation and Opportunity, marking the 10th anniversary of the Foundation’s Spanish branch.
Stay updated with Monaco Life: sign up for our free newsletter, listen to our podcasts on Spotify, and follow us across Facebook, Instagram, LinkedIn, and Tik Tok.
Main photo of Prince Albert II and King Filipe IV of Spain, credit: Michael Aelsi, Prince’s Palace