Have been unable to link the Philadelphia Riegraf's with the Essex County NJ Riegraf's..... Riegraf was a title of honor awarded at a tournament in the 1300's..... my guess is that the families are related....somehow.

My grandmother was a Riegraf, and my mother/aunt's middle names are Riegraf. Great Grandfather Frederick Christian/Christian Frederick's parents died when he was young and he went to live with an uncle......came to the US via a shipwreck near Borneo.....after leaving Germany to avoid conscription....or so the story goes.