Ingeborg Steffensen (1950s)
Ingeborg Steffensen (4 June 1888 – 7 January 1964) was a Danish mezzo-soprano opera singer who made her début at the Royal Danish Theatre in 1915 as Annchen in Carl Maria von Weber's Jægerbruden. She was particularly successful in the title role of Carmen, as Dalila in Samson and Delilah and Azuncena in Il trovatore. She also sang the soprano Fru Ingeborg in Peter Heise's Danish opera Drot og marsk. After her retirement from the stage in 1956, she continued to give concerts and sang oratorios.