In a certain old text dealing with the Spanish conquest of the Americas, I found the following phrase:
El restituirle el derecho, y acciones de Patron, que le tiene quitado, y el Titulo de Conquistador de las Provincias, y gente del Parana, Uruguay, y Tape, que habiendolas conquistado V.M. con su hacienda, y con sus armas, y Soldados Españoles, a costa de muchas vidas, y trabajos, se nombran los dichos Padres Conquistadores, diciendo facilisamente, que esta conquista la han hecho ellos solos, y las llaman en sus libros impresos Conquista espiritual, hecha por las padres de la Compañia, no siendo hechas sino por Compañias, y Exercitos de Soldados de V.M. quitandole el titulo, y derecho de Conquistador, que es Lux belli, para darsele quiza a algun tyrano.
Or in English:
The restitution to you of the right, and of the actions of Patron, that have been removed from you, and the Title of Conquerer of the Provinces, and the people of Parana, Uruguay, and Tape, for having Your Majesty conquered them with your Treasury, and with your weapons, and with Spanish soldiers, at the cost of many lives, the aformentioned name themselves the Conquering Fathers, saying with the utmost ease, that this conquest has been theirs alone, and they call it in their printed books the Spiritual Conquest, carried out by the Fathers of the Company, not having been done but by Companies, and Armies of Soldiers of Your Majesty, taking from you the title and right of Conquerer, which is lux belli, to be given perhaps to some tyrant.
What interests me is a Latin phrase that appears here. What does Lux belli mean in this context? Literally, it is "light of war", correct? It appears to refer to the title of conquerer in some fashion. But how was it used?