How does Xie Yu read the biographical profile of Aisinggioro Xie Yu?

Also known as Aisingiorro Swift (1918-1999), he is a contemporary calligrapher. Born in Wangfujing, Beijing. He is the prince of Aisingiorro clan in China, the private heir of the last emperor Aisin Giorro Puyi, and also his distant nephew. In his later years, he wrote "Documentary of the Last Emperor's Heir-Is there any dragon species passed down from generation to generation by Emperor Xuan Tong".