Japan's Emperor Akihito (second from right) and Empress Michiko (right) greet Zimbabwea's President Robert Mugabe and his wife, Grace, at the imperial palace in Tokyo on March 28, 2016.
Japan's Emperor Akihito (right) and Empress Michiko (second from right) meet Swedish ambassador Magnus Robach in Tokyo, Japan on February 20, 2016.
Japan's Princess Kiko, Prince Akishino, Crown Princess Masako, and Crown Prince Naruhito wave as Emperor Akihito and Empress Michiko depart from Tokyo on on January 26, 2016 for their visit to the Philippines.
Below: Emperor Akihito (left) and Empress Michiko (center) are greeted by President Benigno Aquino of the Philippines (right) at the international airport in Manila on January 26.
Imperial family members make a public appearance at the Imperial Palace in Tokyo, Japan on December 23, 2015 to celebrate Emperor Akihito's 82nd birthday. From left to right: Crown Princess Masako, Crown Prince Naruhito, Emperor Akihito, Empress Michiko, Prince Akishino, and Princess Kiko.
Japan's Emperor Akihito (left) meets with Turkish president Recep Tayyip Erdogan (right) at the Imperial Palace in Tokyo on October 8, 2015.
Japan's Emperor Akihito and Empress Michiko offer flowers at Tokyo Memorial Hall on May 26, 2015. The memorial hall is dedicated to unidentified victims of the Great Kanto earthquake of 1923 and the bombing of Tokyo during World War II.
Below: Japan's Emperor Akihito and Empress Michiko at Tokyo International Airport on April 8, 2015, on their way to visit the Republic of Palau to mark the 70th anniversary of the end of World War II. (Photos by YOSHIKAZU TSUNO/AFP/Getty Images)
Indonesia's President Joko Widodo (right) walks with Japan's Crown Prince Naruhito (second from right), while Indonesian first lady Iriana Joko Widodo (left) and Japan's Empress Michiko (second from left) follow at the Imperial Palace in Tokyo on March 23, 2015. (Photos by YOSHIKAZU TSUNO/AFP/Getty Images)