Crown Prince Akishino, the younger brother of Emperor Naruhito, said that he made the "judgment call" to forgo traditional ceremonies for the wedding of his eldest daughter, Mako Komuro, due to public unease over a financial dispute involving her husband's family.

The crown prince told reporters in Tokyo, ahead of his 56th birthday on Tuesday, that as a result, "it gave the impression that the events and ceremonies of the imperial family are extremely trivial."

On Oct. 26, his elder daughter married her boyfriend Kei Komuro, a commoner, with the union coming more than four years after their relationship was made public, but traditional ceremonies associated with a royal marriage were not held.