Francisco Ruiz Lozano

Francisco Ruiz Lozano (1607, Oruro, Upper Peru—1677, Mexico City) was a Peruvian soldier, astronomer, mathematician and educator.

The mission of the nautical academic was "to form men skillful in the handling of ships for the defense of the viceroyalty."

He served for several years as the director of the Hospital of Espiritu Santo, improving its building and its financial situation.

Over his lifetime, he pursued mercantile affairs nearly everywhere in Spanish America — Panama, Cartagena de Indias, Acapulco, Valparaiso, Concepción and Talcahuano.

Later, probably under the government of Baltasar de la Cueva Enríquez, Count of Castellar (1674-1678), Ruiz Lozano was named general of the navy of the Southern Sea.