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AMSTERDAM, NETHERLANDS - JUNE 12: Princess Margriet, her husband Pieter Van Vollenhoven, sister Princess Irene and sister Princess Christina leave the Christening of baby girl Catharina-Amalia, daughter of Dutch Crown Prince Willem Alexander and Princess Maxima at the Hague on June 12, 2004 in Amsterdam, The Netherlands. Her parents announced the birth of their daughter Princess Amalia - who is the heir to the Dutch throne - on December 7, 2003. (Photo by Steve Finn/Getty Images)

AMSTERDAM, NETHERLANDS - JUNE 12:  Princess Margriet, her husband Pieter Van Vollenhoven, sister Princess Irene and sister Princess Christina leave the Christening of baby girl Catharina-Amalia, daughter of Dutch Crown Prince Willem Alexander and Princess Maxima at the Hague on June 12, 2004 in Amsterdam, The Netherlands. Her parents announced the birth of their daughter Princess Amalia - who is the heir to the Dutch throne - on December 7, 2003. (Photo by Steve Finn/Getty Images)