»Information in Family Law Between Claim and Obligation«: The study examines the subject of information within family law, taking into account all the various sources for obtaining it: the codified claims, the general clauses within family law, the right to information in the context of family law resulting from § 242 BGB, as well as the duty to provide information unrequestedly. The study aims to work out the interrelations among these sources. This is illustrated by an expansion of the duty to provide information unrequestedly.