On May 14th, Czech Republic President Miloš Zeman met three European royals: Grand Duke Henri of Luxembourg, Hereditary Prince Alois of Liechtenstein, and Prince Albert II of Monaco. All were there to recognize the 700th anniversary of the birth of Holy Roman Emperor Charles IV. (Luxarazzi 101 readers will remember that Charles IV was the son of John the Blind and a member of the House of Luxembourg.)
The Czech President met first with Grand Duke Henri and then with Hereditary Prince Alois, and finally with Prince Albert. The meeting itself was private, although photos were taken before the private conversation.
For more about Day 1 in Prague, see the earlier Luxarazzi post, which discusses Grand Duke Henri's reception of the Charles IV award.
More about Day 2 here, including photos of Alois (and, later, with Albert) with President Zeman.