From 19th-century anti-Semitic caricatures to disinformation linked to the Covid-19 pandemic, the Rothschild international banking dynasty has been a favourite target of conspiracy theorists blaming it for the world’s ills. Now an exhibition at the Jewish Museum in Vienna seeks to debunk some of the wild rumours and explore why the Rothschild name continues to attract them, especially as some people on social media look for what they say is proof that the elite is making money out of the virus. “We often hear the names of George Soros or Bill Gates, Jewish or non-Jewish people who are responsible for...