Answer:
Jews. More and More Christians believed that all non-Christians were their enemy. On their way to Palestine, some Crusaders massacred European Jews and continued the killing in Palestine. After the Crusades, Jews were expelled from England in 1290 and from France in 1306 and again in 1394. Many of these Jews moved to eastern Europe. Many Crusaders who stayed in Palestine came to respect Muslims, but Cristian tolerance toward Jews continued.