This is the new Fourth Edition of Royalty for Commoners, the first book ever to document the complete known genealogy of John of Gaunt, son of King Edward III and Queen Philippa. The importance of this documentation is that any commoner who can connect his or her own family lineage to that of John of Gaunt can now be shown to share the same basic royal heritage as the most noble knight--the complete heritage, not just the Plantagenet ascent. This is the usual lineage through which a commoner can enter the domain of European royalty, though one might enter the lineage at any number of points. This new Fourth Edition is a nearly completely reworking of previous editions and includes the following changes: *Two dozen lines have been lengthened *Sources now include dates of publication *There are two indexes rather than one, an every-name index and an index of royal titles *Research now ventures into the years before Christ *The Bibliography has been significantly refined and expanded