About 1291 the family moved to Goslar. But his right of residence there was disputed by a certain Moses Tako (not the famous Moses Taku); although the suit was decided in Mordechai's favor, it was conducted with such bitterness that Mordechai left Goslar and settled at Nuremberg. For the next seven years, he operated a Yeshiva there which attracted students from all over Europe. The Mordechai was murdered, along with his wife and children, in the Rintfleisch Massacres; "see Nuremberg: Middle Ages".