The notion of authority is common in the literature on parent-child relationships. However, the notion of "parental authority" remains largely unspecified. The present article first critically reviews conceptualisations of parental authority in selected developmental-psychological approaches. We find the absence of an explicit and integrated theoretical and empirical conceptualisation of parental authority, as well as a certain lack of consistency in the application of the concept. Against the background of this review, we suggest initial steps towards a concept of parental authority as relational, dynamic and co-constituted in the sense of a joint product and outcome of family relationships.