Dutch Royal Family Attends Princess Irene's Birthday

AMSTERDAM, NETHERLANDS - SEPTEMBER 16: Princess Margriet of The Netherlands, Princess Marilene of The Netherlands, Prince Maurits of The Netherlands, Princess Aimee of The Netherlands and Prince Floris of The Netherlands attend the 80th birthday celebration of Princess Irene in theater Carre on September 16, 2019 in Amsterdam, Netherlands. (Photo by Patrick van Katwijk/Getty Images)