Bertha Tammelin

Bertha Carolina Mathilda Tammelin (née Bock; 21 March 1836 – 2 January 1915) was a Swedish actress, operatic mezzo-soprano, pianist, composer and drama teacher. Her mother was actress Karolina Bock. Tammelin taught at the Royal Dramatic Training Academy, where two of her notable students were Ellen Hartman and Ebba Lindkvist.