According to Reuters:
In the country that first legalised gay marriage, the Dutch crown princess has the right to marry a person of any gender without giving up her right to the throne, the prime minister said on Tuesday.
The question arose after recently published books argued that the country’s rules exclude the possibility of a same-sex royal couple.
But Prime Minister Mark Rutte said times have changed since one of his predecessors last addressed the issue in the year 2000.
“The government believes that the heir can also marry a person of the same sex,” Rutte wrote in a letter to parliament.
