Hello, the Japanese royals don't seem to have been done yet, so I hope this is OK:
Japan
Emperor Akihito & Empress Michiko
Wedding: 10 April, 1959
First Child: 23 February, 1960
10 months and 13 days
Crown Prince Naruhito & Crown Princess Masako
Wedding: 9 June, 1993
First Child: 1...