Why not simply show the Viceroyalty of New Spain Viceroyalty of New Granada and the Viceroyalty of Peru  Showing current borders is just wrong when many of them were defined after independence  Guinea Bisseau should just be labelled Guinea  As for reliability you need to explain how the maps I have shown in what would certainly be considered reliable sources do not show the areas that yours show in questionably reliable sources  The first step in doing this would be to provide written references that back up the claims in these maps  If you are unable to provide written references it casts doubt on the claims made in the map doesnt it  It would be strange for example for North Borneo to have been part of the Spanish Empire yet no historian has ever written about it explicitly stating so