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-Dampierre House of Bourbon-Dampierre The House of Bourbon-Dampierre refers to a noble dynasty emerged from the marriage of Guy II of Dampierre with Mathilde of Bourbon in 1197. The male line of this house ended in 1249, while the female line persisted until 1287. Through the marriage of their last descendant, Mathilde (Mahaut) of Bourbon, with Guy of Dampierre, the territories of Bourbon went to one of the branches of the House of Dampierre in 1196. The arms of the House of Dampierre, nowadays extinct, were "from gules to two leopards of gold, with baron's crown" ("De gueules à deux léopards