Teleri The Third Clan
Falmari Teleri of Aman	Grey-elves Sindar	Nandor Followers of Lenwë
Grey-elves of Mithrim		Other Grey-elves of Beleriand and associated lands

The Grey-elves of Beleriand were a Telerin people, followers of Thingol who had remained in Middle-earth when their fellow Teleri set out across the Sea into the West. As the starlit ages passed, some of these Sindar spread northwards across Ered Wethrin, settling in the lands beyond the mountains. By the time the Noldor returned to Middle-earth, we know that there were Grey-elves dwelling in Nevrast, and a little to the east in the mountain-walled land of Mithrim.

These people would have seen the great Dagor-nuin-Giliath, the first battle between the Noldor and the Orcs, which was fought in their land. These were the first of the Sindar to converse with the returned Noldor, and it was they who brought the first news of the momentous events in the North to the ears of Thingol and Círdan.

After this the folk of Fingolfin of the Noldor settled for the most part in Mithrim, and seem to have enjoyed the friendship of the native Sindar, as did the Edain who entered the service of the Noldor. We know little more of the lives of the Grey-elves of Mithrim until after the Nirnaeth Arnoediad, which ended in defeat for the Elves, and at that time they were driven to dwell in hiding in the foothills of the Mountains of Shadow. One group of these Elves stayed for a time in the caves of Androth under the leadership of Annael, and it was these that aided Rían and raised her son Tuor. Annael's Elves were hunted down by the Easterlings and Orcs that had infested the land. This may have been the end of the Grey-elves of Mithrim, though it is possible that others may have survived to make the long journey south to the Mouths of Sirion.