This essay explores the significance of genealogy and inheritance in Shakespeare’s history plays; specifically, the idea that national and racial characteristics were passed down through the generations in the blood. The word "race" is often applied to peoples produced by the intermingling of different lineages and with different characteristics. The essay shows that such issues were important not just for royal dynasties but for the people they ruled, as is demonstrated through readings of King Henry V, King Richard II, and King John. When races are imagined in such ways the word "bastard" assumes particular importance, as the progeny of two different people(s) taking on new characteristics from a combination of those of the parents. Shakespeare demonstrates in his English history plays that nations and races are never pure, but are always intermingled, compromised, revitalized, and constantly transformed by their union with other peoples, especially the neighbours in terms of whom they define themselves.