Prince Naruhito,the eldest son of Emperor  Akihito and Empress Michiko, is the heir apparent to the Chrysanthemum  Throne of Japan. While in his early thirties, Naruhito met and fell in  love with Masaka Owada, a beautiful, intelligent and highly accomplished  diplomat in the Japanese Foreign Ministry.
 
Masaka Owada’s resume is impressive, to say the least. At the time of their meeting when she was 29,  Masako had earned an A.B. magna cum laude  in Economics from Harvard University, and had attended  graduate  courses in International Relations at Balliol College, Oxford   University. She had also studied briefly at the University  of Tokyo, in  preparation for the entrance examinations at the Japanese Ministry of  Foreign Affairs. A native Japanese speaker, she is fluent in English and  French, and is conversational  in German, Russian, and Spanish.
Prince  Naruhito had met Masaka Owada when her father served as an escort to  the Imperial Royal family, and was reacquainted when she was preparing  for her Ministry of Foreign Affairs examinations.
The  Prince was understandably smitten and sought Masaka’s hand in marriage.  Her name had been removed from the list of potential matches for  Naruhito, due to some political scandal in her family’s past, but  apparently the Prince did not get the message. Their relationship  continued and he proposed twice before Masaka accepted his hand in  marriage.
I  think that her reluctance had nothing to do with affairs of the heart,  but more to do with affairs of state. It’s hard to imagine what it must  be like for such an accomplished woman to relinquish all independence  and individual success to enter a royal marriage. 
Perhaps  Masaka’s deepest fears ended up coming true. After years of trying to  produce that all important male heir, the royal couple announced the  birth of their daughter on December 1, 2001. Despite the fact that many  in Japan would welcome an amendment to the Imperial Succession Law, it  appears  that Princess Toshi, as she is known, will have no  right to the Chrysanthemum Throne of Japan. Like her mother, she might  only be looking forward to a life in which she plays a supportive, never  a leading role.
Masaka  Owada, former female superstar, is now known as the Princess who can’t  produce, and the woman who suffers from “adjustment disorder”, more  commonly referred to as anxiety and depression. Her husband, who I’m  sure, still adores her, actually appealed to the public to be more  understanding of his wife’s condition.
 "I  would like you to understand that Masako is continuing to make her  utmost efforts with the help of those around her. Please continue to  watch over her kindly..."
Maybe she should have refused that marriage proposal just one more time.
http://en.wikipedia.org/wiki/Crown_Princess_Masako