The Fates

from left to right: Clotho, Atropos and Lachesis

These three wiseful sisters share one eye, which they use to see the future. They also determine the deaths of mortals, cutting a mortal’s Thread of Life to send them to the Well of Souls in the Underworld. They know everything that has happened and will happen, and are an authority above the gods in this respect though they cannot kill a God: they were The goddesses of past present and future and they were daughters of Zeus god of the sky and king of gods and Themis goddess of the law and order or Erebus, primordial god of darkness and Nyx, primordial goddess of night.

Clotho: the Fate who spins people's threads of life.

Lachesis: the Fate who measures the lengths of the threads.

Atropos: the Fate who cut the threads.

They are mixture of Moires (Greek Fates), from which they gain powers, and Graias, from which they gain apperance.

In mythology

The Fates were sister their control people life according the Homer their were daughters of Nyx  and Zeus or Hera and in norse mythology norns the goddesses of fate and  destiny  have a similarity to the Fates in greek mythology they describe what happened to you after the twilight of the Gods the coming of Ragnarok 

Family

Mother: Nyx
Father: Erebus or Zeus
Sisters: Nemesis and Eris and Hemera
Brothers: Thanatos and Hypnos and Aether and Charon
Nephews: Morpheus and Phantasos