It was demonstrated in this article that also under Belgian law the rights that the deceased girl derived from her contract with Facebook would be inherited by her parents. These rights are part of the girl’s estate, because they were not established for her lifetime only nor do they originate from an intuitu personae contract. Moreover, Facebook’s rules on memorialized estates were found not to apply to the aforementioned contract under Belgian law.
Erasmus School of Law

Swinnen, K.K.E.C.T. (2019). The German Bundesgerichtshof’s decision on access to your deceased child's Facebook account from a Belgian law point of view. Retrieved from