As has so often been the case throughout history, those with wealth and status were better protected from the law than their less well-off contemporaries.
Mae’r ddeddfwriaeth sylfaenol a’r is-ddeddfwriaeth a nodir isod yn rheoli’r gwaith o’u diogelu a’u rheoli mewn ffordd gynaliadwy; maen nhw i gyd yn rhan o’r cod ar gyfer yr amgylchedd hanesyddol.