Key legal question
Whether the joint parental custody had to be revoked and sole custody transferred to the mother after changed circumstances.
Extracted holding
Yes. The parents' cooperation had broken down and the child's welfare required allocating custody to one parent, namely the mother.
Extracted reasoning
Under Art. 298a(2) ZGB, a new custody arrangement is warranted when circumstances have materially changed and the foundations of shared parental responsibility no longer exist. Here, separation, persistent communication problems, and failed conflict management showed that joint custody could no longer function in the child's interest.