Perceptions of relationships at an individual level, whether one wants to be married or the preferences regarding the division of household chores, have undoubtedly not only taken shape through personal experience, but have also been institutionally socialised in various ways. The normative effect of religious belief, with which a person identifies, is particularly obvious here. In this article, the question is to be investigated to what extent the affiliation to a specific denomination or to none and the self-evaluated religiosity are related to personal attitudes towards various aspects of relationships. For this purpose, the survey on family models in Germany carried out by the BiB is analysed. Based on this idea is the thesis that, depending on religious affiliation and a more pronounced religiosity, traditional ideas of relationship are more common. For the analysis, different items were combined into an index and used as dependent variables in a logistic regression subsequent to dichotomization. The results show a correlation between role models in relationships and religiousness or denomination. The results also suggest that they are more significant than other important individual characteristics for explaining the shift towards a more traditional role model in relationships. Whether affiliation to a specific denomination or religiousness is more important depends on the respective denomination.