Dragon Remnants

Covenant Leader
Magerold of Lanafir.

Location
Iron Keep

How to join
On the top of Dragon Shrine after being invaded by a black phantom [Possibly member of the Dragon Remnants] you can get the Petrified Dragon Egg. Give it to Magerold of Lanafir in Iron Keep, and after speaking with him you can then request to join the covenant.

Covenant Ranks
Upon joining-Dragon Eye, Ancient Dragon Seal.

+1 10 Dragon Scales - Dragon Head Stone.

+2 20 Dragon Scales - Dragon Torso Stone.

+3 30 Dragon Scales - Black Dragon Greatsword.