Princess Catherine Hilda Duleep Singh (27 October 1871 – 8 November 1942), was the second daughter of H.H. Maharaja Sir Duleep Singh and Maharani Bamba née Müller. She was a lifelong romantic companion of governess Lina Schäfer and from 1904 lived with her in Germany until the latter's death in 1937. She requested her burial at Lina's side in her will. Catherine and Lena were instrumental in aiding many Jewish families escape from Germany during World War II.