Ingrid Kristine Bjoner Pierpoint was a Norwegian soprano noted particularly for her Wagnerian interpretations. Born in Kråkstad, Bjoner was educated as a pharmacist at the University of Oslo but got public notice after an extraordinary performance at Oslo Cathedral, which launched a professional musical career. She travelled to Germany for voice lessons with Paul Lohmann at Frankfurt Musikhochschule and Franziska Mattienseen-Lohmann in Düsseldorf. Wikipedia
The definitive Wikipedia entry for Ingrid Bjoner. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Ingrid_Bjoner