Bernalda Castle was probably built originally by the Normans in the 11th century and restored by the Aragonese during their domination, when it was enlarged, fortified and protected with a moat and a drawbridge. The current castle was built by Bernardino de Bernardo, secretary of King Alfonso II, around 1470.
Today Bernalda castle presents a quadrangular plan with angular towers, with a markedly late-fifteenth century mark, although it can be considered as the result of different architectural stratifications. The observation of one of the cylindrical towers, which is equipped with a high trunk-conical base, could in fact suggest an Angevin building intervention. In any case, the castle's closing walls seem to follow the nature of the terrain, and are mainly perpendicular. The continuous restorations must have reduced the width of the entire structure, which at the time of reconstruction could be configured with at least four other towers. Those residuals are however made up of a basement, used mostly as storage, followed by a ground floor with defensive preparations also oriented towards the inside of the enclosure, and two upper floors open on the courtyard, except for the tower of the southern summit .
The castle of Bernalda has fourteen wells, to draw water in case of siege.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.