III. Charles, who ruled Spain from 1759 to 1788, was a highly significant monarch who implemented many reforms to modernize the country. As the ruler of the Spanish Empire, he was also the indirect head of the Spanish colonies, including Chile. III. Károly was born on January 20, 1716 in Madrid. His father was King Philip V of Spain, a member of the House of Bourbon, and his mother was Princess Elizabeth Farnese of Parma. Before becoming King of Spain, Charles ruled as Duke of Parma and Piacenza (1731–1735), then as King of Naples and Sicily (1734–1759). In 1759, his half-brother, VI. He took the Spanish throne after the death of Ferdinand. It was then that he renounced his titles in Italy in order to take over control of Spain. III. Károly is known as a supporter of enlightened absolutism and introduced many reforms aimed at centralizing power and boosting the economy. These included the development of education, the modernization of the judiciary and the improvement of the infrastructure. In 1738, he married Mária Amália of Saxony, with whom they had 13 children, eight of whom reached adulthood. III. Károly died on December 14, 1788 in Madrid. During his reign, Spain underwent significant internal development and strengthened its position in Europe. After his death, his son IV. Károly followed him on the throne. III. During the reign of Charles, Spain underwent important changes, and his reforms contributed significantly to the modernization of the country and the legacy left to later generations.

III. During the reign of King Charles of Spain (1759-1788), the Spanish coinage underwent significant changes. During the period from the beginning of his reign in 1759 to his death in 1788, two important monetary reforms were implemented in Spain. In 1772, he introduced the "new style" (estilo nuevo) money, which unified the coins and issued silver and gold coins with the approval of the Spanish Senate. This reform led to the stabilization of the Spanish monetary system. III. During the reign of Charles, a special coin known as "karlozino" was introduced. These coins are III. They bore Károly's portrait and name and are typically found among gold coins. These carlosino coins were made for special occasions such as coronations or important events.