 Other stories have further traced the Rockerduck family history.Although some depict John as a distant cousin of Scrooge, through an unspecified genealogical connection, others have traced their rivalry to their ancestors.Arguably the most notable among the later stories is an eight-part saga named "Storia e gloria della dinastia dei paperi" ("History and glory of the Duck dynasty") by Guido Martina, Romano Scarpa, Giorgio Cavazzano and Giovan Battista Carpi, first published April 5-May 24, 1970.