(1542–1578), a leader of the Sea Beggars In 1569
William of Orange, who had now openly placed himself at the head of the party of revolt, granted
letters of marque to a number of vessels manned by crews of desperadoes drawn from all nationalities. Eighteen ships received letters of marque, which were equipped by
Louis of Nassau in the French
Huguenot port of
La Rochelle, which they continued to use as a base. These
privateers under the command of a succession of daring and reckless leaders, the best-known of whom is
William de la Marck, Lord of Lumey, were called "Sea Beggars", "" in French, or "''''" in Dutch. At first they were content merely to plunder both by sea and land, carrying their booty to the English ports where they were able to refit and replenish their stores. Already by the end of 1569, 84 Sea Beggars' ships were in action. which they seized by surprise in the absence of the Spanish garrison on 1 April 1572. Encouraged by this success, they now sailed to
Vlissingen, which was also taken by a
coup de cul. The capture of these two towns prompted several nearby towns to declare their support for the revolt, starting a chain reaction that resulted in the majority of
Holland joining in a general revolt of the Netherlands, and is regarded as the real beginning of Dutch independence. In 1573 the Sea Beggars defeated a Spanish squadron under the command of
Admiral Bossu off the port of
Hoorn in the
Battle on the Zuiderzee. Mixing with the native population, they quickly sparked rebellions against
Duke of Alba in town after town and spread the resistance southward. In 1574 the Sea Beggars, under Admiral
Louis de Boisot participated in the lifting of the
Siege of Leiden. Some of the forefathers of the
Dutch naval heroes began their naval careers as sea beggars, such as Evert Heindricxzen, the grandfather of
Cornelis Evertsen the Elder. ==Geuzen symbols==