Search of
www.dastelefonbuch.de search comes up with Horst Enzenhofer. Spelling only 1 z. In city Ingolstadt, Germany.
It is a german phonebook.
Maybe is someone different but maybe is younger family same name.
I do not have Facebook. If you do. Try looking there.
There is a Reddit/r/askaGerman and also a Reddit/r/askGermany try asking there.
Have you tried other sites of Genealogy forums.Ancestry forum etc. Maybe someone there knows.
Hope this helps.