Princess Yuriko became the sister-in-law of Japan's World War II-era Emperor Hirohito when she married his brother Prince Mikasa.

Princess Yuriko was the longest-living member of the imperial family since the Meiji Era (1868-1912) and her death marks the first in the family in eight years since that of Prince Mikasa in 2016. With her death, the imperial family is now made up of 16 people.

The oldest member of the Japanese imperial family and great-aunt of Emperor Naruhito, Princess Yuriko passed away at the age of 101 in a Tokyo hospital on Friday, the Imperial Household Agency said.

Japanese Princess Yuriko has passed away at the age of 101 following a recent decline in her health, according to palace officials.

Princess Yuriko, the oldest member of the Japanese imperial family and great-aunt of Emperor Naruhito, died of natural causes at a Tokyo hospital early

Yuriko's contributions and Japan's royal succession crisis. Yuriko raised five children and supported her husband's research into ancient Near Eastern history. She also fulfilled

Japanese Princess Yuriko, the wife of wartime Emperor Hirohito’s brother and the oldest member of the imperial family, has died after her health deteriorated recently

Japanese Princess Yuriko, the wife of wartime Emperor Hirohito’s brother and the oldest member of the imperial family, has died after her health deteriorated recently, palace officials said. She was 101.

Princess Mikasa, the oldest member of Japan's royal family and great aunt to the emperor, died aged 101 on Friday in a Tokyo hospital, the Imperial Household Agency said.