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 nobles under the Direct Capetian and Valois kings. In 1589, at the death of Henry III of France, the House of Valois became extinct in the male line. Under the Salic law, the Head of the House of Bourbon, as the senior representative of the senior-surviving branch of the Capetian dynasty, became King of France as Henry IV. Bourbon monarchs then united to France the small kingdom of Navarre, which Henry's father had acquired by marriage in 1555, ruling both until the 1792 overthrow of the monarchy during the French Revolution. Restored briefly in 1814 and definitively in 1815 after