to elide historical events with more fanciful legends and propagandistic literary depictions. The work elicited a combination of bewilderment and criticism from the mainstream historical academy. Reviewers complained that it was literary myth-making and not a work of serious historical scholarship. As a result, Kantorowicz published a hefty companion volume (Ergänzungsband) in 1931 which contained detailed historical documentation for the biography. Frankfurt Despite the furor over the Frederick book, and not having written a formal Habilitationsschrift (second thesis to qualify for a professorial appointment), Kantorowicz received an (honorary) professorship at the University of Frankfurt in 1930, though he remained in Berlin until 1931. By December 1933, however, Kantorowicz had to cease giving lectures due to increasing pressure on Jewish academics under the new Nazi regime, though he gave a subversive "reinaugural" lecture titled "The Secret Germany"—a motto of the George-Kreis—setting out his position in light of the new political situation on November 14 of that year. After taking several leaves of absence, he was finally granted an early retirement with a pension in 1935. He remained in Germany until departing for the United States in 1938, when after the Kristallnacht riots it became clear that the situation for even assimilated Jews such as himself was no longer tenable. From Berkeley to Princeton Kantorowicz accepted a lectureship at the University of California, Berkeley in 1939. After several years, Kantorowicz was finally able to secure a permanent professorship, but in 1950, he famously resigned in protest when the UC Regents demanded that all continuing faculty sign a loyalty oath disavowing affiliation with any politically subversive movements. Kantorowicz insisted he was no leftist and pointed to his role in an anti-communist militia as a young university student, but nonetheless objected on principle to an instrument which he viewed as a blatant infringement on academic freedom and freedom of conscience more generally. During the controversy in Berkeley, two eminent German émigré medievalists working in Princeton, Theodore Mommsen (grandson of the great classical historian) and the art historian Erwin Panofsky, persuaded J. Robert Oppenheimer, director of the prestigious Institute for Advanced Study, to appoint Kantorowicz to the Institute's faculty of Historical Studies. Kantorowicz accepted the offer in January 1951 and moved to Princeton, where he remained for the rest of his career. The King's Two Bodies In 1957, Kantorowicz published his masterpiece, The King's Two Bodies, which explored, in the words of the volume's subtitle,