There is prehistoric evidence which dates back as far as the Bronze age such as the megalithic tumulus from Cayacente
and La Baúga and the axes found in Villoria and Tiraña. From the military period, there is evidence like El Cercu fort, El
Prau de Castiello and La Corona en Boroñes. These forts are attributed to the Iron age, but they do not have a fixed date because of
the lack of excavation.
From the Roman period there is very little reliable evidence although there are architectural structures such as the Villoria bridge
or el torreón del Condao, as well as coal mines, recent research situates one only Roman route in this area which
went through the Nalon valley to cross the Tarna pass.
There is very little news about the medieval age, some is considered unreliable. What is evident, is the existence
of a demarcation with the name of Flaviana, whose representatives go to the Oviedo Council in 1115. At that time a monastery
which was already gaining great importance was that of San Vicente de Oviedo. At the time this demarcation already held a position
appointed to its government, already having a great regional importance due to the route which went through the entire Nalon Valley.
It was in the 14th century, when the Nalon area suffers a change in its regional development and town planning, as a consequences all these areas are
provided with an administrative centre. The town which governs the territory of Laviana is from 1344. The founding of this town dates back to
the end of the 13th century. As a place of transit, Pola de Laviana did not reach a great demographic development, but its social composition did
make a difference with its rural enviroment, that is how we assume the presence in this town of a notary, blacksmith, carpenter, etc. Apart from
the power exerted over heritage practiced by the monestary of San Vicente, there was also a growing infuence from the distinguished families.
In the 14th century, the situation of the Laviana council continued with areas which escaped its jurisdiction, these were the areas of
San Vicente and Villoria, which would maintain their rural and farming structure, having to pay their lords a tithe and living under their
jurisdiction marked by despotism. With the seizure of Felipe II, some areas were redeemed, like the limit of Entralgo joining the council of Laviana, but not Tiraña.