The paper analyses the principles that govern the family relationships from the point of view of the Family Code and of the Civil Code (in force byLaw no 287/2009) needed both for the settlement of those aspects related to the family relationships in those matters where the legislation is not explicit enough or does not contain any regulation, and for the assessment of the extent to which the stipulations of the Family Code or of the Civil Code that refer to the family relationships round themselves off with the stipulations of other normative papers.