Private Swap - Japan
The Imperial House of Japan or the Yamato Dynasty, comprises those members of the extended family of the reigning Emperor of Japan who undertake official and public duties. The Japanese monarchy is the oldest continuous hereditary monarchy in the world. (source)
Akihito (1933) is the current Emperor of Japan, the 125th emperor of his line according to Japan's traditional order of succession. He acceded to the throne in 1989.
On 10 April 1959, he married Michiko Shōda (1934). The new Crown Princess was the first commoner to marry into the imperial family. The Emperor and the Empress have three children. (source)
Thank you Rina!