Denier Ramon Berenguer I

Ramon Berenguer I consolidated Catalan comital power through an extraordinary series of treaty purchases — he bought out the claims of the Counts of Carcassonne and Razès in 1067 and 1067 respectively, effectively doubling Barcelona's territorial reach through contract rather than conquest. His court produced the Usatges de Barcelona, among the earliest feudal law codes in the Iberian peninsula, and coin issuance was central to asserting that juridical authority over rival Catalan lords.

Barcelona's silver deniers of this period drew on Carolingian weight standards already well degraded by the mid-eleventh century — 0.5g represents the attenuated end of that tradition.