Abstract

In recent years, scholars have begun to give greater attention to the 14th-century political writer, Ptolemy of Lucca, mostly on account of his avid defense of republican government in the treatise, De regimine principum. Educated in the scholastic curriculum at the University of Paris, Ptolemy has typically been identified by scholars as one of the most thoroughly Aristotelian medieval thinkers. Ptolemy, like many of his contemporaries, peppered his writing with citations from Aristotle's major works. This article, however, examines the sources employed in Ptolemy's republican arguments, finding that the legacy of Republican Rome played a far more critical role in shaping his republicanism than could be attributed to Aristotle's moral or political works. Though conversing fluently in an Aristotelian language system, Ptolemy's arguments in De regimine principum are derived, at their core, from his reading of Roman Republican sources, not from Aristotelian influence. This discovery reveals Ptolemy to be an even more artful and original writer than was previously assumed, and should add to, rather than detract from, his place as a key figure in the development of western political thought.