Arnor
Arnor was the North Dúnedain Kingdom.
Regions
Arthedain
| Name | Capital | Ruler | Type | Region |
| Patrimony of the House of Isildur | Annúminás | Kings of Arnor |
Royal Domain |
|
| Formenyar | Maenthirost | House of Maenthir | Feudal Domain | North Arthedain |
| Emenyar | Heleb | House of Balgrist | Feudal Domain | Nenúnial |
| Eketyar | Arading | House of Arad | Feudal Domain | Nenúnial |
| Noirinanyar | Ambon Noirinanyar | House of Lelmon | Feudal Domain | Nenúnial |
| Hyarromenyar | Minas Hyarromenyar | House of Nelvorin | Feudal Domain | Nenúnial |
| Orromenyar | Barad Garan | House of Garan | Feudal Domain | Nenúnial |
| Tarmear | Mar Tarmeäron | House of Tarmé | Feudal Domain | Central Arthedain |
| Brethyar | Enerond | House of Ener | Feudal Domain | Western Arthedain |
| Lhúndorenán | Caras Celairnen | House of Celairnen | Fiefdom | Western Arthedain |
| Siragalé | Bar Irlossiel | House of Irlossiel | Royal Domain | Southern Arthedain |
| Egenyar | Cor Wilishar | House of Egen | Feudal Domain | Southern Arthedain |
| Mendryar | Northros | Lords of Northros | Royal Domain | Eastern Arthedain |
Cardolan
| Name | Capital | Ruler | Type | Region |
| Tyrn Gorthad | Minas Malloth | House of Malloth | Royal Domain | Northern Cardolan |
| Dol Tinereb | Andrath | House of Tinereb | Feudal Domain | Northern Cardolan |
| Dendor | Denerond | Kings of Arnor | Royal Domain | Northern Cardolan |
| Faerdor | Tharchel | House of Tharnor | Feudal Domain | Northern Cardolan |
| Girithlin | Minas Girithlin / Annon Baran | House of Baran | Feudal Domain | Minhiriath |
| Ethir Gwaltho | Mistalondé | House of Bregan | Feudal Domain | Minhiriath |
| Dol Caladir | Argond | House of Calad | Feudal Domain | Minhiriath |
| Tharbad | Tharbad | Lords of Tharbad | Free City | Minhiriath |
Rhudaur
| Name | Capital | Ruler | Type | Region |
| Tardor | Cameth Brin | Kings of Arnor | Royal Domain | Eastern Rhudaur |
| Magillos | Rynd Morva Tarth | House of Magill | Feudal Domain | Northern Rhudaur |
| Eldanaryar | Minas Eldanaryon | House of Eldanar | Feudal Domain | Northern Rhudaur |
| Eredoriath | Iant Methed | Hose of Eredon | Feudal Domain | Southern Rhudaur |
| Melossé | Minas Brethil/Thuin Boid | House of Melot | Feudal Domain | Southern Rhudaur |
Military
See also:military of Arnor