1221 June 26, ERFURT (Germany)
Although the Archbishop of Canterbury forbade anti-Jewish riots by English crusaders, they continued unabated. A group of religious "pilgrims" on their way to the Holy Land attacked the Jewish quarter, burning two synagogues. Some 26 Jews were killed. Among the martyrs was the paytan and cantor Samuel b. Kalonymus. Others threw themselves into the fire rather then be forcibly converted.