Princess Elisabeth, heir to the Belgian throne, made her state-banquet debut at the Palace of Laeken in Brussels during a dinner honoring Emperor Naruhito and Empress Masako of Japan in June 2026. It was her first banquet for visiting Japanese imperial guests, placing her among the Belgian monarchy’s senior representatives during the state visit.
After completing her studies at Harvard University’s Kennedy School in May 2026, the Duchess of Brabant returned to Belgium and took on a more prominent public role. For the landmark occasion, Elisabeth chose a navy blue gown with a bateau neckline, complemented by the sash of the Japanese Order of the Precious Crown. The centerpiece was the laurel tiara, a historic piece made in 1912 by Hennel & Sons from platinum and brilliant-cut diamonds. Belgian aristocrats gave it to Queen Mathilde upon her engagement to then-Prince Philippe in 1999. Elisabeth had never worn it in public before.
The laurel tiara can also be worn as a necklace, as Queen Mathilde showed at the 2011 wedding of the Duke and Duchess of Cambridge. Elisabeth had appeared in public wearing a tiara before: Japanese magazine 25ans dates her debut to 17 June 2022, at the gala for Princess Ingrid Alexandra of Norway’s 18th birthday. Until now, Elisabeth had chosen other tiaras for international royal events, including a piece she received for her 18th birthday and the Wolfers tiara, a convertible diamond necklace that once belonged to Queen Fabiola. At the banquet, she also wore diamond cascade earrings borrowed from her mother’s collection, adding to the occasion’s significance.
The state dinner was also a first for Elisabeth’s younger siblings: Princes Gabriel and Emmanuel and Princess Éléonore attended their first event of this kind. Japanese royal-fashion publication 25ans called it the first banquet welcoming state guests attended together by all four children of King Philippe and Queen Mathilde. Éléonore wore a new tiara, a gift from her parents, echoing the tradition established for Elisabeth’s key stage birthday. The whole royal family’s presence alongside the Japanese imperial couple underscored a generational shift within the Belgian monarchy.
Elisabeth’s higher profile began earlier in the week, when she personally welcomed Emperor Naruhito and Empress Masako at Melsbroek military airport on Saturday, 20 June. Paris Match Belgique, in an article by Emmanuelle Jowa, described the welcome as the first time Elisabeth had been given that kind of role during a state visit. The official program included private time at the Castle of Ciergnon before culminating in the formal banquet at Laeken, the highlight of the Japanese state visit. Belgian publication L’Éventail also noted that she welcomed the emperor and empress and attended the state dinner.
The high-profile event comes amid a broader trend of European royal families preparing their heirs for future leadership, a topic that has drawn attention in recent weeks. Recent coverage of public ceremonies and generational transitions, including the turbulent developments in 'Valle Salvaje', can be found in this related report on royal protocol and public expectations.
The Belgian monarchy is among Europe’s youngest, with King Philippe ascending the throne in 2013. State banquets are rare occasions where protocol meets diplomacy, giving heirs a platform to demonstrate readiness for future roles. The Japanese imperial visit to Belgium continues a longstanding tradition of exchanges between the two royal houses, reflecting ceremonial ties and changing diplomatic relationships in Europe and beyond.
