Prince Hisahito of Akishino

Prince Hisahito of Akishino (悠仁親王) is the youngest child and only son of the Crown Prince and Crown Princess of Japan.

He is the nephew of Emperor Naruhito and second in line to the throne after his father, Fumihito.

Preceding his birth, the paucity of male heirs in the imperial family had triggered the Japanese imperial succession debate, with some politicians favoring the abandonment of agnatic primogeniture which has prevailed in Japan since its monarchy was established in 660 BC, with eight exceptions (the last reigning empress being Go-Sakuramachi, ), and which remains the law of imperial succession under the post-war constitution of Japan.

Hisahito was the first male child born to the Imperial House of Japan since his father's birth in 1965.

The birth of Hisahito in 2006 removed the need to make any non-traditional provision for the succession.

He became, at birth, next in the line of succession after his uncle and father.

Prince Hisahito was born at 08:27 JST (23:27 UTC) on 6 September 2006 at Aiiku Hospital, Tokyo.

He was delivered by Caesarean section, two weeks early, after complications in the pregnancy.

Hisahito is the youngest of three children and only son of Fumihito, Prince Akishino, and Kiko, Princess Akishino.

He has two older sisters, Mako Komuro and Princess Kako of Akishino.

He was first seen in public on 15 September 2006, outside Aiiku Hospital.

Hisahito, the Prince's personal name, chosen by his father, means "serene and virtuous", according to the Imperial Household Agency.

An alternative translation is "virtuous, calm, everlasting".

In January 2007, Prime Minister Shinzō Abe announced that he would drop an earlier proposal to alter the Imperial Household Law so as to allow women to inherit the throne.

The proposal had been made on the basis of the fact that the brother and two sons of Emperor Akihito had, at the time, no sons of their own.

Given Hisahito's birth, it now seems increasingly unlikely that the laws will be changed to allow Hisahito's cousin Princess Aiko, daughter of Emperor Naruhito, to become a reigning empress.

The supporters of changes criticized the current law as it placed a burden on the few aging males old enough to perform royal duties as females left the family.

In the spring of 2010, Prince Hisahito began kindergarten at a school affiliated with Ochanomizu University in Tokyo; on 14 December 2012, the Imperial Household Agency announced he would enter Ochanomizu University Elementary School in April 2013 so he could be with many of his friends from kindergarten.

The prince thus became the first member of the Imperial House of Japan to receive his education at a school other than Gakushūin Primary School, which is also in Tokyo.

By his second year, he was reported to be doing well at school, helping to look after first-year pupils and playing with his friends.

In April 2019, Hisahito was enrolled in Ochanomizu University Junior High School.

Police reports indicate that there was an assassination attempt on him there in May 2019.

In August 2019, he accompanied his parents on an official visit to Bhutan.

In March 2021, he was awarded a second-place prize in the junior high student category of Kitakyushu's 12th Children's Nonfiction Literature Awards.

In February 2022, he was accused of plagiarism concerning that award-winning essay, which was about his trip to the Ogasawara islands.

The Imperial Household Agency and Prince Hisahito acknowledged that the essay's citations were "inadequate" and that the prince would contact the organizers of the award with revisions.

The award was not considered for revocation.

In April 2022, Hisahito was enrolled in University of Tsukuba Senior High School.

Hisahito is styled as His Imperial Highness Prince Hisahito.

The mon represents the Japanese umbrella-pine tree (kōyamaki).