Since Elinor Ostrom's seminal works in the 90s the analysis on the common lands has had a great development, which have favored complex historical approaches and, more recently, archaeological ones. However, fewer are the studies which tackle the long duration of these common lands, addressing not only their historical origins but also their transformation regarding different historical contexts. In this paper, from a multidisciplinary perspective that includes the analyses of the documentary, archaeological and ethnographical evidence, we will delve into the history of the common lands at the villages of Casaio and Lardeira (Ourense, Galicia). Hence the social, economic and political factors which have influenced the configuration of these spaces as well as the uses and practices exerted on them will be explored. In conclusion, we will value the analyses of conflicts and agencies as the best path to understand the complexities of common lands from a long duration perspective.