The issues of this research are primarily related to the concept of natural law as opposed to issues of sovereignty during the period of the Spanish Colony of the New World. The research project approaches the Spanish colonial environment of the New World through a more general readjustment of philosophical, theological, and political thought on the field of the philosophy of law during the period of Εarly Modern Europe.Basic objective of this research is the presentation of the philosophical thought of Francisco de Vitoria, one of the most important lecturers and founders of international law in Spain during the 16th century. A secondary goal is to fill a large and distinct gap in the Greek-language scientific bibliography in the Spanish p...