Princess Kako, a niece of Emperor Naruhito, will visit Austria and Hungary from Sept. 15 in her first official overseas trip, to mark the 150th anniversary of Japan's diplomatic ties with the two countries, the government said Thursday.The 24-year-old younger daughter of Crown Prince Fumihito, the emperor's younger brother, will deliver speeches at receptions and make courtesy visits to the presidents of the two countries during her 11-day trip, according to the itinerary approved by the Cabinet.She will depart on Sept. 15 from Tokyo's Haneda airport on a commercial flight to the Austrian c…READ FULL ARTICLE