Frías, Province of Burgos

Frías is a town located in the northern part of the province of Burgos, in Castile and León, Spain. In 2010 it had a population of only 275 inhabitants.
Frías is a historic medieval town on a hill above the river Ebro, which has been a strategic point to cross river Ebro in the routes communicating with the Cantabrian Sea. Today the town is a popular tourist spot. It has an impressive castle dominating the river and the twelfth-century bridge across it. It is considered to be the smallest "city" in Spain, having been given that title in 1435.
There are two convents and two churches in the town. The gothic church of San Vitores is particularly worth visiting.
Frías is around 80 km northeast of Burgos, in river Ebro shore. Its county territory has 29,37 km.
Frias is aptly named in homage to the temperature of the water that flowed from the mountainous peaks draining into the Tobalina Valley. There is first mention of Frias in the late 9th century but after the year 1000, it was incorporated into the kingdom of Navarre located in Burgos. Frias’ history is one that includes war which fueled its growth and development even when controlled by adversaries.
As the kingdom of Navarre, Frias was controlled by King Sancho III the Great. In 1504, Navarre was defeated in battle and reincorporated into Castile. Frias would go on to be controlled by Diego Lopez de Haro, the Lord of Biscay in the late 11th century and Alfonso VIII in 1200.
After 1201, Frias was granted a set of laws and sense of freedom by Alfonso VIII that allowed them the right of succession, ability to elect a mayor, and tools to stimulate their economy. With these laws enacted, Frias was able to thrive and prosper until it was granted the title of city by King John II in 1435.
In the summer of 1450, Frias was overtaken by a Balmaseda army of 1500 men; albeit the Frias townspeople joined together and successfully attacked the army. This attack is celebrated every year in an event called Fiesta del Capitan. Frias would continue to experience ebbs and flows of bondage and freedom until 1811 when feudalism was abolished in all of Spain.
Frías has been usually ruled by the Socialist Party (PSOE). From 2007 to 2015 the Major has been Luis Arranz from People's Party (PP). In 2007 reaching an agreement with the left party IU, and in 2011 with absolute majority. In the May 2015 elections, PSOE recovered the power with absolute majority, as repeated in 2019 elections.
The medieval old town has been declared Conjunto Histórico and retains its urban structure and special construction features.
These houses, with ground floor and two or three additional floors and, eventually a wine cellar, are supported by each other, creating streets at different height. In some cases these house hang from the rock. Their structure is made of walls of limestone within a wood structure.
The houses are located in the streets that climb the hill with Velasco's Castle and San Vicente church. A wall partially surrounds the old town and two arches from the three initially erected: puerta del Postigo and puerta de Medina.
These arches are also made of limestone and wood, materials that makes them to camouflage in the rock. They are placed in Obdulio Fernández Street and can be contemplated from the streets: "Antonio Carpintero, Mayor de San Vitores, Federico Keller and Campa de las eras."
This building is placed in Alfonso VIII Square, close to the castle. Initially was the palace of the Salazar's family, and a coat of arms can be found over its door with the thirteen stars of the Salazar's. A Saint Francis lace surrounds the stars. Later it has been used as residential barracks and today is the Tourism Office of Frías.
An important Roman road connecting the Castilian plateau and the north of Spain cross Frías by a ford of Ebro River 500 meters east of the Romanic bridge. In addition, Frías was also the beginning of another Roman road connecting this area with La Rioja. It passes by La Canaleja, Rueda, Ronda, Rincón de Soto and Calzada streets.
Frías' medieval bridge is 143 meters in length and has 9 arches. It was built in a Romanic style, and refurbished in the 14th century when a defensive tower with arrow-holes and battlements were built in the center. This tower also functioned as a medieval toll point called “cobro del pontazgo”. The bridge connects Avenida del Salero and Avenida de Santa María del Puente.
The Jewish quarter, almost unknown until the final decades of the 20th century, was important in its time. Mentions of Jewish inhabitants during the 14th century can be found in the cartulary of Santa María de Vadillo, although there are references even from the previous century. For instance, in 1387, someone called Nahamías was recognized as a neighbor. Even in 1574 in some documents the converted “tax collector of Frías” from the mid 15th century, Juan Sanz de la Ussa, was recalled, wondering if he had been executed or forgiven. Juan Sanz de la Ussa worked as a tax collector for the Velasco family and founded the Visitación chapel. The Jewish quarter was located on calle Convenio and calle Virgen de la Candonga.
On the top of “La Muela” hill, its strategic position provides a privileged view of the valley and the bridge19.8M over Ebro River. It is one of the most remarkable rock castles of Spain.
The first mention to the castle dates back 867. What can be seen today was built in the last years of the 12th century and beginning of the 13th century, under the reign of Alfonso VIII. The castle has a main defensive function. The tower keep is detached of the rest of the castle, with its own defensive system.
A bridge over the moat (originally a drawbridge) gives access to the main door. Defense is based on the strategic location of the tower keep on the top of a big rock. High walls with battlements and arrow-holes protect the entire castle. Around the parade ground, rest of the original buildings like barns or cellars can be found.
The tower keep can be visited, and from its top visitors can find the best views of the city and its environment. This tower has partially collapsed at least three times in history, last time in 1830, with a death toll of 30 people. This event was related with the explosion of the wall by the French army under Napoleon.