In the early 1140s, the Bavarian princess Bertha von Sulzbach arrived in Constantinople to marry the Byzantine emperor Manuel Komnenos. Wanting to learn more about her new homeland, the future empress Eirene commissioned the grammarian Ioannes Tzetzes to compose a version of the Iliad as an introduction to Greek literature and culture. He drafted a lengthy dodecasyllable poem in twenty-four books, reflecting the divisions of the Iliad, that combined summaries of the events of the siege of Troy with allegorical interpretations. To make the Iliad relevant to his...