The Svevo Angioina Fortress, also known as Lucera Castle, is an historic 13th-century military structure built in the Federal and Angevic ages, as well as one of the symbols of the city of Lucera. Located on the top of Colle Albano, dominates the Tavoliere delle Puglie. Around 1233, Frederick II built his Palatium, to which Charles first of Anjou flanked the majestic fortress, completed in 1283. To date, the whole area constitutes an archaeological area. Traces of different ages can be seen: Neolithic huts, ruins of the Roman, early Christian, Swabian and Angevin. Over the centuries, the summit of Colle Albano has always been considered a strategic position for its dominance on the Tavoliere of Puglia and its defense for three sides by steep overhanging walls. The hill was inhabited since the 3rd millennium BC, archaeological research, carried out in 1964, revealed the presence of a Neolithic settlement. In the nineteenth century, Lucera's car was found, a group of bronzes with human figures and animals that probably make up a ritual scene dated to the 8th century BC. and perhaps originally belonged to a funerary kit. of the Roman Lucera, of which today there are some archaeological remains in the adjacent area of the Tower of Leonessa, of Christian worship: the remains of an early Christian basilica are documented. From 1223 onwards, Frederick II deported the Saracens of Sicily to Lucera, which became an important Muslim settlement. After 1233, the Emperor made his Palatium on Mount Albano. In 1269, Charles I of Anjou posed the siege of Lucera, concluded with the famine of the Saracen city. Between 1269 and 1283, Carlo I d'Angiò realized, in two phases of the program, the majestic fortress, with a wall of about 900 meters of perimeter, incorporating inside the Palatium of Federico II. The birth of the military garrison sees the presence of architects such as Pierre d'Angicourt and Richard of Foggia. Pierre de Chaulnes also worked in the factory and in 1275 also Nicola di Bartolomeo da Foggia. Inside the Fortress, a military town was built, with the arrival of Provencal families, and the construction of houses, barracks, a cistern and a Gothic church, consisting of a rectangular wing and a semi-hexagonal apse . As a construction material, the remains of the Roman buildings still in the area were used. In the 18th century, the buildings inside the fortress were demolished and, together with parts of the federal Palatium, the resulting materials were used for the construction of buildings in the historic center of Lucera: in particular the Palace of Justice and the church and convent of Santa Maria del Carmine. In the 19th century the first restorations of the fortress began and in 1871 it was declared a National Monument. The Federico Palatium, of which only a few basements can now be admired, was a square complex rising three floors. The courtyard at the level of the third floor appeared with an octagonal shape, which reminds very closely the most famous structure erected by Frederick II in the area: Castel del Monte. In the courtyard of the Palatium, there is the presence of a well. The swing gate of the Swabian castle was not found. The irregular wall surrounding the entire hill on which the fortress stands is 900 meters long, 13 meters high, and it also consists of 13 square towers, 2 pentagonal bastions, 7 buttresses and 2 cylindrical corner towers. Tower (of the Lioness) (or Queen), merlata, 25 meters high and 14 wide, and Tower (Lion or King), 15 meters high and wide. 8 On the fortress is allowed four doors: Gate Lucera, Porta Troia, Porta Guardiola and Porta Castel Fiorentino.