Japan’s Emperor Visits Namur and Leuven for Historic Ties
Emperor Naruhito and Empress Masako of Japan are continuing their two-day state visit to Belgium on Wednesday, travelling to the cities of Namur and Leuven in a carefully curated programme that balances tradition, innovation, and the deep personal ties between two royal families. The visit marks 160 years of diplomatic relations between Belgium and Japan, dating back to the Treaty of Amity, Commerce and Navigation signed in 1866.
A Rare Imperial Journey
The imperial couple arrived in Belgium on Saturday after a prior state visit to the Netherlands and were welcomed at Melsbroek Airport by Crown Princess Elisabeth — her first official duty since graduating from Oxford. They spent the weekend at the Royal Castle of Ciergnon in the Ardennes alongside King Philippe and Queen Mathilde, before beginning the official programme on Tuesday in Brussels with ceremonies at the Royal Palace, meetings with Prime Minister Bart De Wever, and a state banquet at the Castle of Laeken.
Emperor Naruhito has made only four foreign trips since his enthronement in 2019, making this visit a significant signal of the importance Japan places on its relationship with Belgium and Europe. According to the Belgian Federal Public Service for Foreign Affairs, the visit is “an opportunity to reaffirm the close ties between our two countries, which are also reflected in the special ties between the Belgian Royal Family and the Japanese Imperial Family.”
Namur: Water Management and Shared Passions
Wednesday’s programme begins in Namur, the capital of Wallonia, where the Emperor will visit the Castle of Namur and the Citadel. The focus will be on water management — a subject of deep personal interest to Emperor Naruhito, who specialised in the history of river transportation at the University of Oxford and has served as honorary president of the UN Secretary-General’s Advisory Board on Water and Sanitation. King Philippe later chaired the same body, underscoring a remarkable convergence of interests between the two monarchs.
Leuven: Where Innovation Meets Tradition
The afternoon brings the imperial couple to Leuven, where they will visit two institutions that embody the balance between modernity and heritage that defines the visit. First is imec, Europe’s leading semiconductor research centre, which has developed more than 100 partnerships with Japanese research centres and companies over nearly four decades. More than 100 Japanese researchers currently work at imec, making it a vital hub for Japan-Europe technological cooperation amid global efforts to strengthen trusted semiconductor supply chains.
From the cutting edge of microelectronics, the Emperor and Empress will then proceed to the KU Leuven University Library, where they will be guided by renowned Belgian Japanologist Professor Dimitri Vanoverbeke. “It’s almost impossible to meet him,” Vanoverbeke told VRT NWS, describing the honour of guiding the imperial couple. “So it’s a tremendous honor that I may guide him through the University Library.”
The library holds a remarkable collection of thousands of ancient Japanese works, donated by Japan after the original library was burned down by German forces during World War I. Dating from the 12th to the 19th centuries, some of these works are now so rare that they cannot be found in Japan itself due to earthquakes and wartime destruction. “Imec stands for innovation, the library for tradition,” Vanoverbeke explained in an interview with Veto, the KU Leuven student newspaper. “The Emperor attaches great importance to that combination.”
A Friendship Spanning Generations
The warmth between the Belgian and Japanese royal families is unusually personal. Japan’s Ambassador to Belgium, Takeshi Osuga, has noted that Emperor Naruhito and King Philippe were born less than two months apart in 1960, while their eldest daughters — Princess Aiko and Princess Elisabeth — were born within weeks of each other in 2001. The bond was forged decades earlier when King Baudouin secretly helped facilitate the marriage of Crown Prince Akihito to commoner Michiko Shoda in the late 1950s, forwarding their love letters and reportedly intervening with Emperor Hirohito.
Emperor Naruhito, who first visited Belgium as a teenager in 1976 with his father, has long considered King Baudouin and Queen Fabiola “his parents in Europe.” King Philippe reflected on this connection, saying of Naruhito: “Under his benevolent guidance, I discovered Japanese culture.”
Economic and Strategic Significance
Beyond the ceremonial pageantry, the visit carries substantial economic weight. More than 280 Japanese companies operate in Belgium, supporting nearly 30,000 jobs in automotive, logistics, chemicals, and biotechnology sectors. Japan is Belgium’s 25th largest export market and its 4th largest non-European supplier. The visit to imec, in particular, highlights the growing strategic partnership in semiconductor technology as Europe and Japan seek to reduce dependence on any single region for critical supply chains.
What to Watch For
The imperial couple’s visit concludes on Thursday with a farewell ceremony at the Castle of Laeken before their departure from Melsbroek Airport. Empress Masako, who has long struggled with a stress-related condition and is accompanied by her psychiatrist on this trip, has already demonstrated her commitment to the visit by participating fully in the programme despite health challenges. Her presence underscores the significance both Japan and Belgium place on this milestone anniversary.
As Professor Vanoverbeke noted, the Emperor’s visit is about more than protocol. “He can open new doors to facilitate relationships. When the Emperor visits a country, it’s an opportunity for economic, cultural and academic interaction.” With 160 years of friendship as its foundation, this state visit points toward a future of even deeper cooperation between two nations bound by shared values and a remarkable personal history.