Judah Loew ben Bezalel

The great wizard-rabbi of Prague, a notable Talmudic scholar and mystic who worked in that city in the late 1500s.

Judah Loew had a great reputation as a teacher and thinker among nonwizardly people of the region. But in wizardly circles he was best known for the creation of the Great Golem of Prague, a construct which he built to protect the Jews of Prague's Ghetto from persecution by ignorant people of the city.