Abstract
In 2016, M. Laborda-Pemán and T. De Moor issued a call to advance the conversation between commons scholars and historians. This paper argues that in order to further this conversation, in the case of Western Europe more attention needs to be paid to the centuries preceding the blossoming of the commons in the high Middle Ages. It focuses on NW Iberia to show that in this case, as in others, such developments need to be assessed against the processes triggered by the collapse of the Roman Empire. On the basis of the extant sources, and building upon some of the concerns of critical institutionalism, it then considers some of the theoretical avenues that could facilitate such a dialogue: addressing the multifunctional, socially embedded nature of institutions; the weight of social inequalities and power relations in their configuration and functioning; the role of conflict in the definition of norms and their transformation over time; and the discursive practices aimed at legitimising specific institutional arrangements.