Bardulia

thumb|Medieval tower of the Velascos in Lezana de Mena (near present-day Valle de Mena, in historic Bardulia. According to some sources, Bardulia is the ancient name of the territories that composed the primitive Castile in the north of what later became the province of Burgos. The name comes from Varduli, the name of a tribe who, in pre-Roman and Roman times, populated the eastern part of the Cantabrian coast of the Iberian Peninsula, primarily in present-day Guipúzcoa. Some assert that the Varduli also encompassed or assimilated the Caristii and Autrigones.