Daughters of the Witch of Izalith

This if my first time ever posting to a forum, so forgive me if it seems a bit ass backwards.

After watching the intro video to Dark Souls, I noticed that the Witch of Izalith has seven daughters.

One of these is Quelaag obviously.

One is her sister that you feed humanity to in the chaos covenant.

The third is the pyromancy merchant in blight town.

Another one is the body that has the gold hemmed robes.

And the final one I'm assuming is Ceaseless D - if, in fact it is a girl?

So where are the other two?

Could they possibly be the orbs to the left and right of their mother in the bed of chaos?

3170483-1349675648_medium

via darksouls.nexusmods.com