The Fort of San Diego is the most important coastal fortress along the Pacific Ocean. It is located on a reef in what is now the Petaquillas neighborhood. Its construction in 1616 was overseen by the engineer Adrián Boot, a native of the Netherlands (then part of Spanish Flanders). It was named San Diego in honor of the patron saint of the 13th viceroy of New Spain (1612–1621), Diego Fernández de Córdoba, Marquis of Guadalcázar, and the bastions at each corner of the wall were named “King,” “Prince,” “Duke,” “Marquis,” and “Guadalcázar.” Between 1776 and 1778, following a severe earthquake that caused significant damage to the port, it was renovated by engineer Miguel Constanzó (based on a design by engineer Ramón Panón), who built a new parade ground with five bastions and surrounded by a moat. By 1783, the expanded project was completed: it could accommodate two thousand men-at-arms with provisions and drinking water for the entire year, as well as 63 fully stocked long-range cannons. Later, it served as a convent, a hospital, and a prison. In 1933, President Abelardo Rodríguez declared it a national monument; in 1959, it hosted the World Film Review; and since April 24, 1986, it has been the home of the Acapulco Historical Museum.