An introductory chapter briefly outlines relevant historiography of courtier studies in general and analyses of elite female servants more narrowly. This introduction establishes important classifications of household servants and demonstrates how roles and terminology shifted over time as the royal court and household grew in both size and complexity over the course of the later Middle Ages. In addition to illuminating categories of female service, the introduction details the sources and methodology employed to produce this analysis of medieval English ladies-in-waiting, highlighting the goals, successes, and limits of this kind of prosopographical methodology. The introduction argues that an analysis of ladies-in-waiting offers insight into female social networks, gender dynamics at court, and issues of power, authority, and wealth, along with how women accessed these features, in late medieval society.