Mirborn was a Cardolannon wanderer who had lost his family estates in the conflict between the three successor kingdoms of Arnor. Accompanied by one retainer, he roamed the lands of Eriador in search of a place to settle. Mirborn had been on the road for so long that the desire for new horizons always overcame any plans he formed to reside in the villages through which he passed.The warrior wore scale armor and a helm decorated by eagle's feathers. He carried a shield bearing the seven stars on a white field above a red hill that was his family's crest. The seven stars represented Arnor, the red hill signified Cardolan.