When Did Birgit Cullberg Die?

Birgit Ragnhild Cullberg was a Swedish choreographer. Her father Carl Cullberg was a bank director and her mother was Elna Westerström. Cullberg was born in Nyköping and was married from 1942 to 1949 to actor Anders Ek. She was the mother of Niklas Ek in 1943, and twins Mats Ek, and Malin Ek in 1945.