German soprano Hildegard Behrens, best known for her roles in Wagner and Strauss operas, has died in a Tokyo hospital aged 72, an official at the Kanshinetsu Music Society Foundation in Japan said Wednesday.

Behrens, who was in Japan to participate in the Kusatsu International Summer Music Festival, near Tokyo, was hospitalized Sunday after arriving in Japan, said the official from the foundation, which hosts the music festival.

She died Tuesday of an aortic aneurysm, according to the foundation's website.

Born in Varel, Germany, in 1937, Behrens started her musical training at a conservatory while she was a law student.

She made her professional opera debut in 1971 and went on to perform at the Salzburg Festival and leading opera houses around the world including the Metropolitan in New York and Covent Garden in London.

Among her accolades were three Grammy awards for best opera recording between 1989 and 1992.