Caroline Frederikke Müller née Halle also known as Caroline Walther, was a Danish and later naturalized Swedish opera singer (mezzo-soprano). She was also active as an instructor at the Royal Dramatic Training Academy. She was a member of the Royal Swedish Academy of Music and a Hovsångare.

Sofia Franziska Stading was a Swedish opera singer of German origin. She is referred to as one of the more notable opera singers in Sweden during the Gustavian era. She was a Hovsångare and member of the Royal Swedish Academy of Music from 1788.