It consisted of sisters Sonja Martinsson ( 1934 -- 2013 ) , Barbro Svensson ( born 1941 ) and Agnetha Gardelid ( born 1945 ) .
The members were sisters Sonja Martinsson ( 1934 -- 2013 ) , Barbro Svensson ( born 1941 ) and Agnetha Gardelid ( born 1945 ) .