When it became clear to renowned German actress Tilla Durieux and her husband Ludwig Katzenellenbogen, a businessman of Jewish origin, in mid‑1934 that their residence permit in Switzerland would not be renewed, the two decided to leave for Zagreb — the capital of Croatia, in what was then the Kingdom of Yugoslavia. Few Europeans really had a sense of where Zagreb was located, Durieux later noted in her diary. "People thought Zagreb was a suburb of Vienna or of Prague. Yugoslavia was somewhere '