My dissertation examines a critically underserved body of womens literature from the fifteenth and sixteenth centuries created by queens - either by legal right or by coronation - that publicly informed and confirmed their and their husbands and sons' royal authority to the aristocratic reading community. I analyze the intersection of queenship and literary culture though four case studies focused on different modes of literary intervention. The women included in this study are Margaret Beaufort, Henry VII's mother who was credited with ending the War of the Roses; Cecily Neville, mother to kings Edward IV and Richard III; and Katherine Parr, the last wife of Henry VIII. Beaufort, Neville, and Parr had a vested interest in maintaining their family's status because their own positions depended so heavily upon the standing of the royal family. Literary culture, particularly with the emergence of print, became a useful tool for reinforcing or making the case for their family's royal legitimacy. Their literary activity was not subversive, nor did it manipulate patriarchal institutional authority. Their works reflected open, direct enforcement of their families' positions that offered the queen-consorts and king-mothers involved in the day-to-day of ruling a means of asserting their influence on their aristocratic peers and, by extension, the realm at large.