evidence: If the divorce was decreed by a court or authority of the state whose sole nationality the parties had at that date, and neither of them was subject to an alternative civil status regime (e.g. as a stateless alien, asylum seeker or foreign refugee), then formal recognition is unnecessary. Insofar as there is a particular legal interest in having a divorce recognized, formal recognition may be applied for. A legal interest is given if for example they need to submit a binding declaration of their civil status for a case arising from the divorce or for registration or taxation purposes. [...] Procuring divorce decrees, marriage certificates and other documents from abroad In order to prove that a marriage has been dissolved abroad, the marriage certificate, divorce decree and, if necessary, other documents must be submitted to the German authorities or courts.