In one of the worst pogroms in English history, at least 150 Jews are murdered at Clifford's Tower in York. The pogrom starts when Richard de Malbis incites a crowd to attack the family of a Jewish employee of a Jewish merchant to whom he owed a lot of money.
The leader of the Jewish community gathers his people together to take refuge in the royal castle where they are besieged by both the mob and the sheriff.
Their religious leader, Rabbi Yomtob, convinces them that suicide is the only option now and many take it. Additionally, the castle is set on fire to prevent Christians from mutilating their bodies later. A few choose to surrender, promising to convert to Christianity, but the mob doesn't care and slaughters them anyway.