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. Yuriko died Friday at a Tokyo hospital, the Imperial Household Agency said. It did not announce the cause of death, but Japanese media said she died of pneumonia. Born in 1923 as an aristocrat, Yuriko married at age 18 to Prince Mikasa, the younger brother of Hirohito and the uncle of current Emperor Naruhito, months before the start of World War II. She has recounted living in a shelter with her husband and their baby daughter after their residence was burned down in the U.S. fire bombings of Tokyo in the final months of the war in 1945. Yuriko raised five children and supported Mikasa's research into ancient Near Eastern history, while also serving her official duties and taking part in philanthropic activities. She outlived her husband and all three sons. Her death reduces Japa