She married the brother of wartime Emperor Hirohito less than two months before Japan’s attack on Pearl Harbor in 1941.

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 of Japan, who was the oldest member of the Japanese Imperial Family, has died at 101 years old. Princess Yuriko — the wife of Emperor Hirohito’s brother — died at a Tokyo hospital on Friday, Nov. 15 after her health deteriorated recently, the Imperial Household Agency told CNN.

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.