The internationally active family association Gräff-Graeff e. V. was founded and officially registered in Austria in August 2013. The purpose of the association is to get to know, research and bring together the alleged descendants of Wolfgang von Graben († 1521) from the Graben family, Kornberg line in Styria. The association has branches in the Netherlands, South Africa and the USA and has around 150 members. The chairman and country speaker for Austria is Matthias Laurenz Gräff.
Since 2024, the association has been awarding recognition to people with the letter of honor who have made a contribution to cultural life. This award is intended to continue a tradition that the De Graeff family maintained as patrons of the arts during the Dutch Golden Age. The pin with the coat of arms of (De) Graeff was chosen as a badge of honor for the letter of honor in order to emphasize the tradition and solidarity. The Letter of honor is awarded by Matthias Laurenz Gräff in his capacity as chairman of the family association and as academic painter.