Therese Rosenbaum

She was born in Vienna in 1774, daughter of the composer Florian Leopold Gassmann.

Therese studied singing with Antonio Salieri, and from 1790 was engaged at the Theater am Kärntnertor, the theatre of the Vienna Court Opera.

[1][2] She appeared in 1801 in the first production at the Theater am Kärntnertor of Wolfgang Amadeus Mozart's The Magic Flute, as the Queen of the Night.

[3] In 1800 she married Joseph Carl Rosenbaum, secretary of Nikolaus II, Prince Esterházy.

[4] She and Rosenbaum were friends of Joseph Haydn, and she sang in premieres of his church music, in particular the choral version of The Seven Last Words of Christ.