It is surely true that our impulse controls us

Yom Tov ben Isaac of Joigny was a talmudist and poet active in central France. He was a prominent student of Jacob ben Meir (Rabbenu Tam). His halakhic responsa appear in several later collections. He seems also to have been a biblical commentator and anti-Christian polemicist. Yom Tov eventually became the leader of the Jewish community in York, England. Alongside other members of his community, he died a martyr when English rioters attacked the Jews of York on the Sabbath before Passover in 1190.