History of Bolivia to 1809 reduction in silver output. After 1700 only small amounts of bullion from Upper Peru were shipped to Spain. Kings from the Bourbon Dynasty in Spain tried to reform the colonial economy in the mid-eighteenth century by reviving mining. The Spanish crown provided the financial support necessary to develop deeper shafts, and in 1736 it agreed to lower the tax rate from 20 to 10 percent of the total output. The crown also helped create a minerals purchasing bank, the Banco de San Carlos in 1751 and subsidized the price of mercury to local mines. The foundation of an academy of
House of Bourbon-Parma House of Bourbon-Parma has reigned agnatically in Luxembourg when upon the abdication of his mother Jean, Grand Duke of Luxembourg, ascended to the throne. Jean was the son of Prince Felix of Bourbon-Parma, a younger son of Robert I of Parma, and Charlotte, Grand Duchess of Luxembourg. Charlotte's descendants have since reigned as the continued dynasty of "Nassau". In October 2000 Jean abdicated the Luxembourgian throne in favour of his eldest son, Henri, Grand Duke of Luxembourg. Sources: House of Bourbon-Parma The House of Bourbon-Parma () is a cadet branch of the Spanish royal family, whose members once ruled as