This study aims to investigate the influences of the families of origin regarding the construction of the conjugal bond in the new couple. Therefore, we did a study using both quantitative and qualitative methods. We selected a young couple (husband 27; wife 28), without children, and whose parents were alive. Initially, a questionnaire investigating the parent´s conjugality (QCP) as perceived by their children, was applied to each member of the couple. Later, we interviewed the couple and their respective parents, making up a total of six subjects. The conjugal dynamic of the new subsystem, the couple, is related to the interactional patterns established in their families of origin. We observed that relational models repeatedly appeared in three generations: in the grandparent´s generation, in the parents and in the new couple. In this transmission some contents of the heritage were transformed, while others were reproduced without further elaboration, both in the second, and mainly in the third generation, that is, the new couple. The discussion of the material obtained was based in psychoanalytic and systemic theories. We concluded that generational influences mark the construction of the conjugal bond, establishing a foundation for conjugal identity, sometimes in a constructive manner and other times inciting conflicts.