Entrambasaguas

Entrambasaguas has been inhabited since prehistoric times. Several sites bear witness of Paleolithic settlement with continued use through the Bronze Age.

Hoznayo has two caves from the Paleolithic era, the Recueva cave, which has been heavily disturbed by poachers and the Cueva del Francés.

The Navajeda cave was first explored in 1922 by a priest named Jesús Carballo, who found Palaeolithic strata and burial sites from the Bronze Age. Bronze Age materials and cave paintings were found in the Cueva del Eucaliptal (lit. 'cave of the eucalyptus plantation'), the "cueva de Bocarones" and the "cueva de los Murciélagos" (lit.: bat cave).

Two sites dating back to the Middle Ages are the upper necropolis of Entrambasaguas from the 9th to 12th century, and Mount Vizmaya in Hoznayo, featuring ceramic shards and construction from the time of the Reconquista. In medieval times the place established itself as "Entre amas aguas" (lit.: between the two waters), probably referring to the dense network of its water channels, mentioned in the Libro de la Montería of Alfonso XI of Castile. Its main artery is the river Aguanaz, which became the greatest source of wealth for settlers who established water mills and flour mills.

The municipality was first mentioned in 1210, in the cartulary of the Abbey of Santa Maria in Santoña. In the late Middle Ages, Entrambasaguas came under the aristocratic governance of the House of Agüero. Some of the places during that period appear in medieval documents, as for example Navajeda, whose inhabitants in 1407 claimed the privilege of being "exempt of extraordinary tax" and being linked to Santa Maria of Santoña. This relationship continued until the 17th century, when Entrambasaguas became part of the Junta de Cudeyo, which is within the district of the Cuadro Villas de la Costa del Mar. In the 18th century, its members participated in early attempts to create the province of Cantabria.

Iron mines supplied minerals to the cannon factory of Lierganes and the Royal Artillery Factory of La Cavada, which operated from 1637 until 1835.

In 1822, Navajeda instituted a Constitutional Council with the same name, which Liérganes boasts today.

By 1835, the town of El Bosque was added in a reform, while the municipality became head of a new judicial district for 50 years, the capital was moved to Santoña and 80 years later to Santander. Since 1992, El Bosque has been part of Medio Cudeyo.

The modern municipality arose from a reorganization of the Junta de Cudeyo during the 19th century, which had consisted of Marina de Cudeyo, Medio Cudeyo, Liérganes, Riotuerto, and Miera.

Patrimonio:

Existen en este municipio dos Bienes de Interés Cultural:

Palacio de los Acebedo en Hoznayo, que data del siglo XVII. Tiene una fachada entre dos torres con planta cuadrada. Se considera que pertenece al estilo renacentista herreriano. Está junto a la carretera CA-652, en el cruce de Hoznayo.

Palacio de los Fernández de Velasco, formado por una casona de mediados del siglo XVII y una casa-torre adosada que es de finales del siglo XVIII. Se considera que pertenece al estilo «Clasicismo regional». Está a las afueras de Entrambasaguas, en la carretera CA-651 que la une con Hoz de Anero.

Además, hay tres bienes inventariados:

La Fuente del Francés, en Hoznayo.

Un Molino maquilero o de aceña.

Varias Portaladas.

•Sendero Subida a Brenas (PR-S 137, 17 km)

•Picos de Busampiro (PR-S 24, 14.7 km)

•Ignacio de la Pezuela, político español (1764-1850)

Gobierno municipal:

Mª Jesús Susinos Tarrero (PP) es la actual alcaldesa del municipio.

Organización territorial: