The European countryside in the fifteenth century was more sparsely populated than at any time since about 1150. This fact has dominated historical perceptions of the period. The ‘demographic crisis’ is seen as an all-pervading influence, having its origins around 1300 in fundamental problems of overpopulation, overextension of cultivation and ecological imbalances. The crisis began with the famines and plagues of the fourteenth century, and its effects persisted in some countries after 1500. This chapter is based on the assumption that this view of a ‘demographic crisis’ helps our understanding of the fifteenth century, but that excessive dependence on it leads to a distorted and incomplete picture, and after examining the crisis we will turn to alternative interpretations, additions and modifications.