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
Charles II, Duke of Bourbon Charles II, Duke of Bourbon Charles II, Duke of Bourbon (Château de Moulins, 1434–September 13, 1488, Lyon), was Archbishop of Lyon from an early age and a French diplomat under the rule of Louis XI of France. He had a 2-week tenure as Duke of Bourbon in 1488, being ousted afterward by his younger brother and successor, Peter II, Duke of Bourbon. An hereditary member of the House of Bourbon through Charles I, Duke of Bourbon and Agnes of Burgundy, Charles II, being a younger son, was appointed Canon of Lyon in 1443 and soon after, in June 6, 1444,