Queen Sonja Viola Ling (born May 20 1940) is the Queen of Denmark and Southern Sweden. She succeeded to the throne of Denmark and Southern Sweden upon the death of her brother King Kaj XI Ling on September 20 1996. The daughter of the then Crown Prince Frijof Ling and of Princess Elisabet Ling of Denmark and Southern Sweden, Sonja Viola was born at the Crown Prince Residence at Goteburg. Queen Sonja Viola Ling has two sisters, Princess Agnes, Mrs. Yde (born 1952), living in Central South America, and Princess Ellinor, Mrs. Jensen (born 1960), living in Oslo.