The aim of this work is to explain the connection between the dynastic indebtedness and the characterization of the dynastic debt (“Juros”) between 1557 and 1627. It’s well known that the main impulse that affected the size of the consolidated debt was the series of stoppage of payments that took place between those dates, due to the short term debt made into “Juros”. Besides, during this period of time, there was another factor which had an important effect in the course and characteristic of the “Juros”: We are referring to the financial contracts between the kings and the bankers (“Asientos”), because the deposits and gifts (“Adehalas”) commonly offered to business men, especially at a time of an increasing of costs, included different faculties regarding the property, possession and management of the “Juros”. During that period, the main “Juros” were “resguardos, comodidades, crecimientos, mudanzas and consumo of juros”. In conclusion, the connection of both institutions, “Juros” and “Asientos”, secured the financing of the military and court expenses, allowing the Genoese bankers to control the dynastic debt of the Austrian Monarchy, one of the consequences was the series of financial crises known as bankruptcy