On 17 June 2026, Mr. Cherdchai Chaivaivid, Ambassador and Permanent Representative of the Kingdom of Thailand to the United Nations, and his spouse signed the book of condolences in remembrance of Her Royal Highness Princess Bajrakitiyabha Narendiradebyavati Kromluangrajasarinisiribajra Mahavajrarajadhita. Diplomats and officers of the Permanent Mission and the Office of the Military Adviser as well as their spouses also joined the signing ceremony to pay their respects to Her Royal Highness.