Spanish monasteries for nuns had an economical rentier basis. Nuns that lived in them were of noble status. Their families were wealthy and nuns often were obliged to take their veils without having experienced a religious appeal. Consequently, the norms of the religious orders insisting in poverty, in work and praying as means of avoiding leisure were not so much attended. Through this article, Rey tries to find the tasks of the nuns and she compares them with the great amount of work done by the lay sisters and by the servants of both monasteries and nuns.