Things to look forward to in May (from unofficialroyal)
May 1 – Japan – Crown Prince Naruhito ascends the throne as Emperor of Japan, Presentation of the Three Sacred Treasures ceremony will occur
May 4 – Luxembourg – The state funeral of Grand Duke Jean of Luxembourg will be held at the Cathedral of Notre Dame of Luxembourg in Luxembourg City, Luxembourg
May 4-6 – Thailand – Coronation of King Maha Vajiralongkorn
May 6-8 – Sweden – Crown Princess Victoria and Prince Daniel will make an official visit to Vietnam
May 7-10 – United Kingdom – The Prince of Wales and The Duchess of Cornwall will make a visit to Berlin, Leipzig, and Munich in Germany
May 13-15 – Cambodia – King Sihamoni‘s Birthday, three-day public holiday
May 14-16 – United Kingdom – The Earl of Wessex will make a visit to Slovenia, North Macedonia, and Croatia
May 17 – Norway – Constitution Day, the National Day of Norway, the Norwegian Royal Family makes an appearance on the balcony of the Royal Palace in Oslo.
May 20-22 – Denmark – Crown Prince Frederik and Crown Princess Mary will visit Seoul, South Korea for a Danish business promotional campaign
May 20-22 – Netherlands – King Willem-Alexander and Queen Máxima will make a working visit to the German states of Mecklenburg-Western Pomerania and Brandenburg.