The first documents of Zalatambor Castle date back to 1024. This fort became known since the 13th century as the castle of Zalatambor, coinciding with the first fortifications made in the main rock.
In addition to the successive extensions and reforms of Zalatambor, the defense of the city was reinforced with the construction of a new castle, Belmecher, in 1276, and a tower as a defensive watchtower that, following the mountainous ridge, guarded the path of Castile. The three fortifications were joined by a wall forming the Estella castle enclosure, totally independent from the city.
Zalatambor Castle was a royal residence during the 13th, 14th and 15th centuries, with numerous rooms prepared for this purpose. However, since the mid-15th century the state of the castle, the result of the crisis caused by the civil war between Agramonteses and Beaumonteses, forced the monarchs to lodge during their stay in the noblest houses of the city.
In 1512 , the Beaumontesa-Castilian coalition conquered the castle, which, along with the rest of the kingdom, passed into Castilian hands. However, it continued in use until 1572, when the new defensive plan against France led to the construction of the citadel of Pamplona and the abandonment of the medieval Navarrese castles.
Its partial destruction was carried out by blowing up the main defensive elements. However, the current state of the castle is mainly due to its use as a quarry, documented in numerous lawsuits since its blasting.
References:The Broch of Gurness is an Iron Age broch village. Settlement here began sometime between 500 and 200 BC. At the centre of the settlement is a stone tower or broch, which once probably reached a height of around 10 metres. Its interior is divided into sections by upright slabs. The tower features two skins of drystone walls, with stone-floored galleries in between. These are accessed by steps. Stone ledges suggest that there was once an upper storey with a timber floor. The roof would have been thatched, surrounded by a wall walk linked by stairs to the ground floor. The broch features two hearths and a subterranean stone cistern with steps leading down into it. It is thought to have some religious significance, relating to an Iron Age cult of the underground.
The remains of the central tower are up to 3.6 metres high, and the stone walls are up to 4.1 metres thick.