Between 1200 and 1350, the meaning attributed to the terms 'emperor' and 'empire' evolved in France to reflect the growth in power of the Capetian-Valois kings and a concomitant decline in the authority exercised by contemporary Romano-German rulers. Both terms were ubiquitous in France in this period. The fact that neither was adopted to describe the expansion of royal power was because, as this article will demonstrate, its growth was considered a consolidation of existing rights and was limited by deep-seated concerns for legitimacy, neither of which fostered imperial comparisons. At the same time, a multi-layered understanding of imperial terminology developed in France. On one level, 'empire' and 'emperor' became interchangeable with 'kingdom' and 'king'. Yet imperial vocabulary remained highly malleable. Philip IV's conflict with the papacy led to the development of specific arguments intended to undermine any subordination Acknowledgements: Research for this article was facilitated by a fellowship at the Ruprecht-Karls-Universität Heidelberg in association with the Sonderforschungsbereich 933 der Deutschen Forschungsgemeinschaft (Materiale Textkulturen: Materialität und Präsenz des Geschriebenen in non-typographischen Gesellschaften). Versions of the article were presented at the 2014 Leeds International Medieval Congress, as well as the 2015 conferences of ANZAMEMS and the Medieval Association of the Pacific. The author is grateful to participants at all three, to the anonymous reader and, in particular, to his fellow editors, Klaus Oschema and Christoph Mauntel, for their comments and advice.