the Kingship of Jerusalem, and the Kingdom of Sicily. Ships would sail from Calabria to the Holy Land. This made Calabria one of the richest regions in Europe as princes from the noble families of England, France and other regions, constructed secondary residences and palaces here, on their way to the Holy Land. Guiscard's son Bohemond, who was born in San Marco Argentano, would be one of the leaders in the first crusade. Of particular note is the Via Francigena, an ancient pilgrim route that goes from Canterbury to Rome and southern Italy, reaching Calabria, Basilicata and Apulia, where the crusaders lived, prayed and trained, respectively. In 1098, Roger I of Sicily was named the equivalent of an apostolic legate by Pope Urban II and later his son Roger II of Sicily became the first King of Sicily and formed what would become the Kingdom of Sicily which lasted nearly 700 years. Under the Normans Southern Italy was united as one region and started a feudal system of land ownership in which the Normans were made lords of the land while peasants performed all the work on the land. In 1147, Roger II of Sicily attacked Corinth and Thebes, two important centres of Byzantine silk production, capturing the weavers and their equipment and establishing his own silkworks in Calabria, thereby causing the Norman silk industry to flourish. In 1194, Frederick II, took control of the region, after inheriting the Kingdom from his mother Constance, Queen of Sicily. He created a kingdom that blended cultures, philosophy and customs and would build several castles while fortifying existing ones which the Normans previously constructed. After the death of Frederick II in 1250, Calabria was controlled by the Capetian House of Anjou, under the rule of Charles d’Anjou after being granted the crown of the Sicilian Kingdom by Pope Clement IV. In 1282, under Charles d’Anjou, Calabria became a domain of the newly created Kingdom of Naples, and no longer of the Kingdom of Sicily, after he lost Sicily due to the rebellion of the Sicilian Vespers. During the 14th century, would emerge Barlaam of Seminara who would be Petrarch's Greek teacher and his disciple Leonzio Pilato, who would translate Homer's works for Giovanni Boccaccio. While the cultivation of mulberry was moving first steps in Northern Italy, silk made in Calabria reached the peak of 50% of the whole Italian/European production. As the cultivation