The Royal Mint of Seville was the neuralgic center where gold and silver was melted during the time the Indies were a part of the Catholic Monarchy. Later it was turned into marcos and doubloons for later support of the European economy in the golden Century.
Large amounts of precious metals from America arrived in Spain and from 1500 until 1717 Seville had exclusive monopoly on the goods coming from the New World. The quantity of precious metals turned into coins was so great that on a few occasions, crises were generated by over-inflation. In the centuries of great opulence more than 200 people worked feeding the ovens.