What museum is now housed in the palace built by Nguyễn An and others in the 15th century?
Nguyễn An Nguyễn An (Sino-Vietnamese 阮安; died 1453), known in Chinese as Ruan An (pinyin) or Juan An (Wade-Giles), was a Ming dynasty eunuch, architect, and hydraulics specialist between the first and fifth decades of the 15th century. Born in Vietnam, he was taken as tribute from Vietnam to China and later became a eunuch and architect in service to the Chinese emperors. He, along with numerous architects, such as master designers and planners Cai Xin (蔡信), Chen Gui (陳珪), and Wu Zhong (吳中), master carpenter Kuai Xiang (蒯祥), and master mason Lu Xiang (陸祥), was an important builder of the Forbidden City in Beijing.
Museum of King John III's Palace at Wilanów The Museum of King John III's Palace at Wilanów (Polish: "Muzeum Pałacu Króla Jana III w Wilanowie" ) is a museum in Warsaw, Poland considered to be one of the oldest in the country and the repository of the country's royal and artistic heritage. The collection consists of valuables collected by subsequent owners of the Wilanów Palace, the Kings of Poland - John III Sobieski and Augustus II, as well as by representatives of noble families of Potocki, Lubomirski and Branicki and a collection of Sarmatian art.