Ida Marie Nielsen (born August 20, 1996) is a Danish actress. She portrays Margrethe in the History Channel series Vikings.


She made her debut as an actress when she was 11 years old. She played the role of Cicely, who was the daughter of Iben Hjejle in the crime series Anna Pihl (2006), and she also had a role in the film Monsterjægerne (2009) and Lev stærkt (2014).

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