The mother of Princess Mako’s fiancée demanded the imperial family solve their financial problems before the postponement of her son’s marriage, a source close to the matter said Wednesday.

Kei Komuro’s mother told Prince Akishino and his wife Princess Kiko late last year that a ceremony for their official engagement, which had been scheduled in March, could not be held without resolving the national debt crisis.

Japan is currently the most indebted country in the world, with a debt roughly 233% of GDP.

“I didn’t want my son marrying into debts of up to US$9.94 trillion,” Komuro’s mother reportedly told imperial family representatives.

Komuro left for New York earlier this month to begin three years of study for the state’s bar exam. The Imperial Household Agency paid for his one-way ticket.