This dissertation seeks to understand the multifaceted nature of the ways in which Welsh identity was represented and understood within Old and Middle English literary works. In so doing, it makes the argument that the construction of Welsh identity in medieval English literary works is uniquely tied to ambiguous spaces in the landscape, such as wastelands, borders, and marches. Thus the borders and boundaries described in the literature of medieval England from the Anglo-Saxon period to the late Middle Ages become spaces in which the construction of identity within these texts and within society as a whole takes place. Yet moreover, the mutability, flexibility, and ambiguity inherent within these spaces in Anglo-Saxon and later Middle Engl...