of mulberry was difficult in Northern and Continental Europe, merchants and operators used to purchase in Calabria raw materials to finish the products and resell them for a better price. The Genoese silk artisans used fine Calabrian silk for the production of velvets. In particular, the silk of Catanzaro supplied almost all of Europe and was sold in a large market fair to Spanish, Venetian, Genoese, Florentine and Dutch merchants. Catanzaro became the lace capital of Europe with a large silkworm breeding facility that produced all the laces and linens used in the Vatican. The city was known for its fabrication of silks, velvets, damasks and brocades. Early modern period In the XV century, Catanzaro was exporting both its silk cloth and its technical skills to neighbouring Sicily. By the middle of the century, silk spinning was taking place in Catanzaro, on a large scale. In 1442 the Aragonese took control under Alfonso V of Aragon who became ruler under the Crown of Aragon. In 1501 Calabria came under the control of Ferdinand II of Aragon, whose wife Queen Isabella of Castille is famed for sponsoring the first voyage of Christopher Columbus in 1492. Calabria suffered greatly under Aragonese rule with heavy taxes, feuding landlords, starvation and sickness. After a brief period in the early 1700s under the Austrian Habsburgs, Calabria came into the control of the Spanish Bourbons in 1735. It was during the 16th century that Calabria would contribute to modern world history with the creation of the Gregorian calendar by the Calabrian doctor and astronomer Luigi Lilio. In 1466, King Louis XI decided to develop a national silk industry in Lyon and called a large number of Italian workers, mainly from Calabria. The fame of the master weavers of Catanzaro spread throughout France and they were invited to Lyon to teach the techniques of weaving. In 1470, one of these weavers, known in France as Jean Le Calabrais, invented the first prototype of a Jacquard-type loom. He introduced a new kind of machine which was able to work the yarns faster and more precisely. Over the years, improvements to the loom were ongoing. Charles V of Spain formally recognized the growth of the silk industry of Catanzaro in 1519 by allowing the city to establish a consulate of the silk craft, charged with regulating and check in the various stages of a production that flourished throughout the