Crown Princess Catharina-Amalia, 17, has not commented on the matter and little is known about her personal life. The question arose after recently published books argued that the country’s rules rule out the possibility of a real same-sex couple.
But Prime Minister Mark Rutte said times have changed since one of his predecessors last addressed the issue in 2000.
“The government believes that the heir can also marry a person of the same sex,” Rutte wrote in a letter to Parliament.
“The government therefore does not see that an heir to the throne or the king should abdicate if he wishes to marry a same-sex partner.”
Gay marriage was legalized in the Netherlands in 2001.
Rutte said one question remains unresolved: how a gay marriage would affect the subsequent succession of the royal couple’s children. And there’s no point in trying to decide now, he said.
“It really depends on the facts and circumstances of the specific case, as you can see by looking back at how family law can change over time,” he wrote.
Unlike regular weddings, royal weddings require parliamentary approval. Members of the Dutch royal house have sometimes given up their place in the line of succession to marry someone without permission.