Prince Hisahito, the son of Prince Akishino and Princess Kiko, has been
growing in good health and turned 3 on Sunday. Hisahito, the Japanese
imperial family’s first male heir born in 41 years, weighs 13.6
kilograms and is 94 centimeters tall, the Imperial Household Agency
said.
http://www.japantoday.com/category/national/view/prince-hisahito-turns-3