Crown Princess Kiko, who celebrated her 54th birthday on Friday, said she wants to "respect as much as possible" the feelings of her eldest daughter, Princess Mako, whose marriage to her boyfriend has been postponed for nearly two years.

"In regards to my eldest daughter's marriage, we should communicate extensively, and it is important that I accept my daughter's feelings as a parent and think about the matter together," the crown princess said in a statement.

Princess Mako and her boyfriend, Kei Komuro, announced their planned engagement in September 2017 and later said their wedding would take place on Nov. 4, 2018.