Fundación de la Villa de Haro (Areatza) en 1338 Historical milestone · Areatza, Arratia-Nerbioi, Bizkaia Image of Areatza, not of the place itself. Areatza was founded in 1338 by Juan Núñez III de Lara under the name 'Villa de Haro', in honor of his wife's family, as a trading post on the route between Vitoria and the Cantabrian coast; the settlement grew outside the medieval wall from the 16th century onward. Photo: Iurdana (CC BY-SA 4.0) What to see and do in Areatza