Despite the general perception that many Spanish galleons were captured by foreign privateers and pirates, few fleets were actually lost to enemies in the course of the "flota's" two and a half centuries of operation. Only the Dutch admiral Piet Hein managed to capture an entire fleet, in the Battle in the Bay of Matanzas in 1628, after which its cargo was taken to the Dutch Republic. The English admiral Robert Blake twice attacked the fleet, in the Battle of Cádiz in 1656 and in the Battle of Santa Cruz de Tenerife in 1657, but he managed to capture only a single galleon and Spanish officers saved most of the silver. The West Indies fleet was destroyed in the Battle of Vigo Bay in 1702 during the War of the Spanish Succession, when it was surprised in port unloading its goods, but the Spanish sailors had already unloaded most of its cargo. None of these attacks took place in open seas. In the case of the Manila galleons, only four were ever captured by British warships in nearly three centuries: the "Santa Anna" by Thomas Cavendish in 1589, the "Encarnación" by Woodes Rogers in 1709, the "Covadonga" by George Anson in 1743, and the "Santísima Trinidad" in 1762. Two other British attempts were foiled by the "Rosario" in 1704 and the "Begonia" in 1710. These losses and others due to hurricanes were significant economic blows to trade.