"Princess" Der Ling (Chinese: 裕德龄, pinyin: Yù Délíng) (1885 –1944) was a Hanjun bannerwoman, the daughter of 裕庚 (Wade–Giles: Yu Keng. Pinyin: Yù Geng). Her father was a member of the Hanjun Plain White Banner Corps (正白旗), and according to his daughter he was a Lord. This is of some doubt. After serving as Chinese minister to Japan, he was appointed minister to the French Third Republic for four years in 1899. He was known for his progressive, reformist views; for his determination to educate his children, including the girls, in western schools, which was highly unusual in their generation; and for his unvarying support of the Empress Dowager Cixi. In 1905, Yü Keng died in Shanghai. Yü Keng's story is told in the movie Dai noi kwan ying. According to Der Ling's biographer, Der Ling's mother had an American father and a Chinese mother. However, in the book, whatever her background, she is repeatedly referred to by other people as a Manchu.