Over the years, she developed powerful interpretations of the romantic soprano roles in Wagner's operas, becoming one of the company's leading Wagnerian performers by her retirement in 1926.
In 1899, she made her début at the Royal Danish Theatre as Senta in The Flying Dutchman.
In 1901, Nørregaard Hansen secured an engagement at the Royal Theatre, which she maintained until her retirement in 1926.
[1] Ingeborg Nørregaard Hansen died in Copenhagen on 9 August 1941 and is buried in Holmen Cemetery.
[1] Nørregaard Hansen was elevated to the title of Royal Chamber Singer by King Christian X in 1919.