Willem of Orange chose Delft as his headquarters during the Revolt

Date: 
December 31, 1572

For several strategic reasons, especially its inland location, Willem chose Delft as his headquarters to manage the Republic's forces against Spain.

As a result, the city's bulwarks, walls, and gates were strengthened, making Delft's the most developed defenses in the Republic. Its munitions were stored there, too; the storehouse exploded in 1654, the Delft Thunderclap.