Did you mean: Rosamunde Quartet
The Rosamonde Quartet is a French string quartet ensemble established in 1981. It takes its name from Rosamunde, a 1823 composition of incidental music by Franz Schubert, from which he reused a theme in his 13th quartet, nicknamed Rosamunde... Wikipedia
Members: Agnes Sulem-Bialobroda, Thomas Tercieux, Jean Sulem, and more