With Atropos and Lachesis, one of the three Fates in Greek mythology (6)
I believe the answer is:
clotho
(Other definitions for clotho that I've seen before include "female controlling destiny" , "Greek goddess of fate who spins the thread of life" , "Fate who spun thread of life" , "One of the three Fates (she spins!)" , "One of the three Fates in Greek mythology" .)