Princess Kako, the second daughter of Japan's Crown Prince and Princess Akishino, has left for her first official trip abroad to Austria and Hungary.
The princess left Tokyo's Haneda airport for Austria on Sunday morning. She was seen off by Imperial Household Agency officials.
The princess will pay a courtesy call on the presidents of the two countries. She will also attend receptions and dinners to celebrate the 150th anniversary of diplomatic ties between Japan and the two countries.
In Austria, she will attend a concert by the Vienna Boys Choir and will talk with choir members.
In Hungary, she will meet students who are learning Japanese.
The princess is scheduled to return to Japan on September 25.
Princess Kako has been abroad only for private homestay or to study. Officials say she prepared for her first official overseas trip by reading books and consulting experts.