History
Henry VI and Frederick II
William III of Sicily was deposed in 1194 and was succeeded by his grandaunt Constance of Altaville, who nine years earlier had married Henry VI, son of Frederick Barbarossa. Henry himself died in 1197 - his widow ruled Sicily alone for a year and a few months. Before her death she had their four-year-old son Frederick II crowned, creating the new Hohenstaufen dynasty on Sicily. She then ruled as regent on his behalf until her death in 1198, upon which pope Innocent III took over as Frederick's guardian, entrusting him to a regency council and recognising him as heir to the throne of Sicily.
From 1201 to 1206 Markward von Annweiler ruled as regent, followed by William of Capparone, with Frederick only reaching his majority at the age of fourteen in 1208. Palermo and its court became the centre of the Empire, comprising Apulia and western Italy, and there was born the Sicilian School, the first distinctly Italian poetic school. Frederick himself became known as the 'stupor mundi' (marvel of the world), argued by Santi Correnti to have been "the forerunner of the Renaissance prince". He wrote the Constitutions of Melfi in 1231 and from 1220 to 1239 expelled and deported the remaining Muslims on Sicily, ending with the final deportations from Lucera.
His whole reign was marked by struggles against the papacy and the towns of mainland Italy, resulting in both victories and compromises. Since 1206 Syracuse had been held by Genoa, and Frederick only managed to take the city in 1221. The nobility of Catania rebelled against him in 1232, with their hostility giving rise to many legends, such as that Frederick built the city's Castello Ursino to keep the city at bay. Frederick made Catania directly part of his domains, ending the total hegemony of its bishop-count. He settled on Castrogiovanni (now Enna) as his summer residence, reinforcing its city walls with twenty towers and building a new palace and bishop’s chapel, where he gathered the Sicilian Parliament. The 'Torre di Federico II' still survives in the town, whilst the remains of Frederick's octagonal tower on the south side of the castle courtyard in Augusta still survive within the later Spanish building.
Frederick built a palace for himself in the Garcia fort and one for his wife Vittoria in the Vittoria fort, both also in Augusta. He also organised the Fourth Crusade and added castles and fortifications to Sicily and southern Italy. According to his wishes, he was entombed in Palermo Cathedral on his sudden death in 1250.
Manfred of Sicily
In his will, Frederick left his second son Conrad IV almost all his possessions and territories, as well as the thrones of the Empire, Sicily and Jerusalem. To his bastard son Manfred Frederick left the Principality of Taranto and other minor fiefdoms as well as the 'luogotenenza' of the Kingdom of Sicily. In October 1251 Conrad left for the Italian mainland, where he met the Imperial deputies, and in January the following year he landed at Siponto, from which he and Manfred pacified the Kingdom. In 1253 they retook the rebelling counties of Caserta and Acerra and conquered Capua, finally taking Naples that October. Conrad died of malaria on 21 May 1254 (there is no evidence for the rumour that Manfred poisoned his half-brother), making the pope the guardian of his son Conradin.
The pope, however, remained unfavourable to the Swabian dynasty and instead promised the Kingdom of Sicily to Edmund the Hunchback so long as he could occupy it with an army. However, thanks to the diplomatic skills he had inherited from his father, Manfred reached an agreement with the pope, allowing the papal occupation of the army but reserving the rights of Conradin and his family. Despite this, Manfred still did not feel himself safe from the pope and so raised to huge army to oppose the papal forces, meeting them near Foggia. Over the course of 1257 Manfred defeated the papal army as well as putting down internal rebellions, but his army was dispersed in 1258, probably on Manfred's own orders. [1]
On Conradin's rumoured death, the Sicilian prelates and barons invited Manfred himself to take the throne and he was crowned at Palermo Cathedral on 10 August. This was not recognised by pope Alexander IV, who regarded Manfred as a usurper. Heading the Ghibelline faction which existed throughout mainland Italy, Manfred's power grew, particularly by marrying his daughter Constance to Peter III of Aragon in 1262. Manfred was ultimately excommunicated and Pope Urban IV offered the Kingdom of Sicily to Charles I of Anjou, brother to Louis IX of France. Charles marched against Manfred, decisively defeating him at the Battle of Benevento on 26 February 1266. Two years later Conradin himself tried to retake the Kingdom but was defeated at the Battle of Tagliacozzo and beheaded.
Postscript
Manfred's daughter Constance claimed the Kingdom of Sicily in 1281 and after the Sicilian Vespers became queen of Sicily from 1282 to 1285, uniting it to her husband Peter's domains. Peter was crowned King of Aragon in 1282 and thus remained in Spain from 1283 until his death in 1285, upon which the Kingdom of Sicily passed to his second son James, assisted in his rule of Sicily by his mother. He remained on the island until the death of his elder brother Alfonso III of Aragon in 1291 and his accession to the throne of Aragon, returning to Spain and leaving Peter's third son Frederick behind as lieutenant of the Kingdom of Sicily. James made peace with France and intended to cede the island of Sicily to Charles's son Charles II, but its nobility instead crowned Frederick king, ultimately confirmed by the 1302 Peace of Caltabellotta.
