Their Majesties the King and Queen will pay a state visit to France from June 28 to July 2, says the Foreign Ministry.
It comes at the invitation of French President Emmanuel Macron. Her Royal Highness Princess Sirivannavari Nariratana Rajakanya will accompany Their Majesties in Paris.
The visit coincides with the 170th anniversary of diplomatic relations between Thailand and France. It also follows last year's commemoration of 340 years since first contact was made.
Their Majesties' state visit will begin with an official welcoming ceremony at the Hôtel des Invalides on June 29.
They will meet Mr Macron and his spouse at the Élysée Palace before attending a state banquet that evening.
On the following day, Their Majesties will lay a wreath at the Tomb of the Unknown Soldier beneath the Arc de Triomphe. They will then visit the Hôtel de Ville, where they will be welcomed by the Mayor of Paris and receive a briefing on the concept of a "Sustainable Paris".
Their Majesties will travel by electric boat to observe urban development along the Seine and learn of river conservation efforts.
They will also visit the Musée des Arts Décoratifs to view "La Mode en Majesté – Royal Thai Dress: From Tradition to Modernity", organised under the patronage of HRH Princess Sirivannavari Nariratana Rajakanya.
