Château de Bellocq dates from the end of the 13th century and consists of an irregular quadrilateral reinforced by seven towers, linked to the fortified house built in 1281. It was remodelled during the 14th century. The castle was burned down by Louis XIII in 1620 to prevent it being used by Protestants.
At the end of the 13th century, Bellocq was at the frontier with English controlled Guyenne. Gaston VII Moncade de Béarn built the castle on the Gave de Pau, the main river access to Béarn, to fortify his territory. Construction took place between 1250 and 1280. From the beginning, the castle was intended to house a large garrison. The simple plan of an irregular quadrilateral without a keep had four round towers, a semicircular tower and two square towers, one of which formed the main entrance. The curtain walls were pierced with cruciform arrow slits.
A year after completion of the castle, Gaston VII built a bastide close by and this, as well as the fortified church of Bellocq, became integral parts of the complex.
In 1370, Gaston Fébus reinforced the castle and built new strong points in order to preserve his territory's independence from the powerful kingdoms of France, England and Navarre.
In 1542, Henri II d'Albret (Henry II of Navarre) repaired the castle, in case of a Spanish invasion. From this date, the kings of Navarre sometimes left their castle at Pau for the country of Bellocq. Jeanne d'Albret stayed there regularly in the 16th century while she took the waters at Salies-de-Béarn.
In 1568, the French king Charles IX sent the baron of Terride to subjugate and govern the Béarn, then largely Protestant. Terride's troops occupied the region and re-established the Catholic hierarchy. The following year, Jeanne d'Albret asked count Gabriel de Montgomery to form an army of resistance - the castle at Bellocq passed into Catholic hands. It resisted a short siege by Montgomery. In 1620, the Béarn Protestants once again gaining power, Louis XIII had the castle burned down to prevent it being of use to them in the future.
From 1620, the castle played no further role in the history of the region and fell into disrepair.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.