Noble is a status used by many governments, particularly non-democratic ones. Usually Nobility is a hereditary honour, passing on through the oldest child (however, some governments and/or titles may vary this). The following Governments have a system of Nobility; see the appropriate article for the workings of the system in that government:

Imperium

Imperial Nobility

Zhodani Consulate

Zhodani Nobility

Aslan Hierate

Aslan Nobility