Also, in classic feudal terms, a Viceroy was nearly a king in terms of status, but controlled an area either on the fringe of the kingdom (usually empire for a Viceroy, or a very large kingdom)or in an area outside the main borders of the kingdom that is still considered part of the kingdom or empire. Baron is a good title/status, since the relative power and influence of a Baron varies drastically. Some barons are just successful land owners, some control large areas or large towns, and everything in between.