Schoenberg was born in
Karlovy Vary, and raised in
Vienna, the daughter of Henriette Anna Theresia (Hoffmann) and
Rudolf Rafael Kolisch a physician and docent at the
University of Vienna. Her father and maternal grandfather were Jewish, while her maternal grandmother was Catholic. She wrote the
libretto for Schoenberg's one-act opera
Von heute auf morgen under the pseudonym
Max Blonda. At her request Schoenberg's (ultimately unfinished) piece,
Die Jakobsleiter was prepared for performance by Schoenberg's student
Winfried Zillig. After her husband's death in 1951 she founded Belmont Music Publishers devoted to the publication of his works, and was also a key figure in bringing about the premiere of Schoenberg's opera
Moses und Aron. She is not to be confused with either Gertrud Schönberg (1902–1947), who was Arnold Schoenberg's eldest child by his first wife Mathilde and who later married composer
Felix Greissle, or with the soprano Gertrude Schoenberg (1914–1999) who had been a student of Schoenberg's and was the wife of composer
Leon Kirchner. From the marriage of Arnold Schoenberg and Gertrude Kolisch there were three children:
Nuria Dorothea (born 1932), Ronald Rudolf (born 1937), and Lawrence Adam (born 1941). Their daughter Nuria married Italian composer
Luigi Nono in 1955. One of Gertrud Schoenberg's grandsons is lawyer
E. Randol Schoenberg. ==References==