Frederick II von Graben (born before or around 1379; died before 1463), also called Frederick the Younger (German: Friedrich der Jüngere), was a Styrian noble, a member of the edelfrei Von Graben family.
Frederick II later succeeded his father in Styria, while his brother Andreas von Graben (d. 1463) inherited the Carinthian (Ortenburg) estates of his wife.
The interesting thing here is that all the seals are still in good condition and the two Friedrichs show the newer coat of arms with the upright spade, but Reinprecht shows the old Graben family coat of arms with the diagonal bar.
[9] From 1446 he is documented as a member of the Styrian estates (Landstände) and appointed by the Emperor as master of chambers for his cousin (arch)duke Siegmund of Austria-Tyrol.
[10] In 1456 received, together with his son Ulrich III von Graben, the pawned the Lordship Marburg with Obermarburg and Maribor Castle from the Walsee owners.