English merchant privateers or corsairs known as Elizabeth's "Sea Dogs" however enjoyed more qualified success. In the three years after the Spanish armada more than 300 prizes were taken from the Spanish with a declared total value of well over £400,000. English courtiers provided money for their own expeditions as well as others, and even Elizabeth herself would make investments. The Earl of Cumberland made a number of expeditions and a few did yield profithis first being the Azores Voyage in 1589. Others failed however due to bad weather and his 1591 voyage ended in defeat with Spanish galleys off Berlengas. Cumberland with Sir Walter Raleigh and Martin Frobisher combined financial strength and force that led to the most successful English naval expedition of the war. Off Flores island in 1592 in a naval battle the English fleet captured a large rich Portuguese carrack, the Madre de Deus, as well as having outwitted a Spanish fleet led by Alonso de Bazán. The expedition's reward equalled nearly half the size of the Kingdom of England's royal annual revenue and yielded Elizabeth a 20-fold return on her investment. These riches gave the English an excited enthusiasm to engage in this opulent commerce. Raleigh himself in 1595 went on an expedition to explore the Orinoco river in an attempt to find the mythical city of El Dorado, in the process the English plundered the Spanish settlement of Trinidad. Raleigh however exaggerated the wealth there on his return to England. Supporting Raleigh with his expedition was another led by Amyas Preston and George Somers known as the Preston Somers expedition to South America notable for a daring overland assault that saw the capture of Caracas.