In the world of family bonds, one sometimes has to navigate through labyrinths of complex interconnections, where blood ties intersect with marital relationships. To accurately determine the degree of kinship between individuals, specialists use a method in which each line of relation is considered separately: for instance, if one relative is connected to the husband at the second degree and another to the wife at the second degree, the resulting degree is determined as the sum of these values—that is, the fourth degree. At the same time, the marital tie itself does not add to the calculation; only the lines leading to the common ancestor are taken into account. This approach, which allows the degrees from both sides to be “added” together, is particularly valuable in cases of cross-linking, where the lines differ in complexity. As a result, if one branch has a degree of 2 and the other a degree of 3, a five-degree kinship is formed. This method not only helps structure family ties, but also preserves objectivity when analyzing even the most tangled “cross” relationships.