On Thursday, April 17, 2014, Their Imperial Majesties Emperor Akihito and Empress Michiko of Japan accompanied by His Imperial Highness Crown Prince Naruhito of Japan, Their Imperial Highnesses Prince Akishino and Princess Kiko of Japan, Her Imperial Highness Princess Mako of Japan, and Her Imperial Highness Princess Kako of Japan attended the traditional Spring garden party held at Akasaka Palace in Tokyo.