Shacklock, Constance (1913–1999)

English mezzo-soprano. She studied at the Royal Academy of Music, London. She sang in the first production of the Covent Garden Opera Company (Purcell's Fairy Queen, 1946), and continued to sing there until 1956, as Octavian, Carmen, Azucena, Marina, Ortrud, Fricka, and Amneris. She sang Brangaene in Amsterdam and Berlin, under Kleiber. She was well known in the Messiah and The Dream of Gerontius. She was awarded the OBE in 1971.