Born in Vienna, Karoline was the daughter of composer
Anton Wranitzky and niece of composer
Paul Wranitzky. She received her vocal training from her father, and her early performances took place in Munich and Budapest. She married Carl August Seidler (13 September 1778 – 27 February 1840) in 1813, a violinist from Berlin, who lived in Vienna from 1811 until 1816. One of Seidler-Wranitzky's most well-known endeavors is her performance as the original Agathe in von Weber's
Der Freischütz in 1821. In addition to this role, she also performed the title roles in
Helene and
Agnes Sorel, Susanne in
The Marriage of Figaro, and Pamina in
The Magic Flute, amongst others. She died in Berlin at the age of 82. == References ==