his king signed the secret Treaty of Dover with England to form an alliance to conquer a northern neighbor.
his king signed the secret Treaty of Dover with England to form an alliance to conquer a northern neighbor. This ruler commissioned the military engineer Vauban to construct a series of fortifications defending his country's borders. The Treaties of Nijmegen ended a series of wars between this ruler's country and the Netherlands, which this king earlier invaded in the War of the Devolution. This ruler supported the accession of his grandson Philip V to the Spanish throne, which provoked the War of the Spanish Succession. Much of this king's foreign policy was dictated by his chief minister Cardinal Mazarin. For 10 points, name this longest reigning French monarch, nicknamed the "Sun King." 
his king signed the secret Treaty of Dover with England to form an alliance to conquer a northern neighbor.
Louis XIV [accept nicknames like the Sun King before mention; prompt on Louis]