My name is Nathan Fischbein, of the Univ...

My name is Nathan Fischbein, of the University of Vienna mathematics faculty. I was born in 1924, the only son of Zacharia and Estelle, known as Sally. We lived on Schwarzenbergplatz, not far from the Merz apartment. Hermann Merz was my great-uncle by marriage, meaning that my grandmother’s brother, Professor Doktor Ludwig Jakobovicz, was the husband of Hermann’s sister Eva.
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I didn’t see the ‘Portrait of Margarete Merz’ again until I saw it on public display at the Belvedere art gallery after the war. At the Belvedere the picture was called ‘Woman with a Green Shawl’, but there was no doubt it was the portrait of my Great-Aunt Gretl, who died from cancer in December of 1938.

Tom Stoppard, Leopoldstadt. Grove Press, 2020. p.104.