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
Prince Gabriel of Bourbon-Two Sicilies Prince Gabriel of Bourbon-Two Sicilies Prince Gabriele of Bourbon-Two Sicilies (Gabriele Maria Giuseppe Carlo Ignazio Antonio Alfonso Pietro Giovanni Gerardo di Majella et Omni Sancti; 11 January 1897, Cannes, France – 22 October 1975, Itu, Brazil,) was a prince of the deposed dynasty which ruled the Kingdom of the Two Sicilies. Gabriel was the twelfth child and youngest son of Prince Alfonso, Count of Caserta, and his wife, Princess Maria Antonietta of Bourbon-Two Sicilies. Nicknamed "Onga" within his family circle, he grew up having little contact with either of the two elder brothers, Carlo (1870-1949) and Ranieri (1883-1973), whose rival