Jacqui, your argument re. hereditary royalty and the present family not being related to Richard 111 , but to the Tudors, would be perfectly valid, if not for the fact that Henry V11, (Tudor ), in order to " cement " his claim to the throne , married Elizabeth of York, daughter of Edward IV and niece of Richard III, thus , in my mind, and that of many, many noted historians, keeping alive the Plantagenet line of royalty !! Ergo, the present lodgers in Buck House ARE descendants of the Plantagenet dynasty !! Simple really.