The Arthedain (S.Edain of the Realm) were the Dúnedain of the old Kingdom of Arthedain.They were the most pure blooded descendants of the Númenóreans among the Dúnedain of the north.
Other mannish peoples of the kingdom of Arthedain included:
- the Forodrim or eriadorian Northmen of the northern marches
- the Breelanders
- the Rivermen of Númeriador and the Baranduin
- the Lossoth, sometimes temporarily encamped in the northern borders to the ice bay of Forochel. However, they mostly inhabited the far northern Cape of Forochel, beyond the boundaries of any nation.