I was going by wikipedia "He emigrated to France with his family in 1956 due to the rise of antisemitism in Egypt.", but if we click through to the source for that statement we get
Wikipedia on the Nasser expulsions, didn't know about this before:
>As a result of the Suez Crisis, Nasser brought in a set of regulations imposing rigorous requirements for residency and citizenship as well as forced expulsions, mostly affecting British and French nationals and Jews with foreign nationality, as well as many Egyptian Jews. Some 25,000 Jews, almost half of the Jewish community left in 1956, mainly for Israel, Europe, the United States and South America.