His Royal Highness The Prince sent a birthday message to His Majesty The King of the Belgians who celebrates his 61st birthday on 15 April.
The message can be found reproduced below:
Sire,
I have the extreme honour and pleasure of wishing Your Majesty a very happy birthday. Your Majesty’s health, happiness, and prosperity remain in my thoughts and prayers.
Please accept, Your Majesty, the assurances of my respect and highest consideration.
Maximilian P.
Detroit, 3 April 2021