Phillip II gave the city the name of Noble and Loyal City of Nuestra Señora de los Zacatecas. In 1588, he authorized its coat of arms. It is a crowned coat and it depicts the Cerro de la Bufa, a landmark of the capital, surrounded by its original discoverers. A cross on top of the Hill and an image of Nuestra Señora del Patrocinio. There's also the sun and the moon in its dexter and sinister side respectively. On the bottom is the motto LABOR VINCIT OMNIAQUE (“Work conquers all”).