Possible Clues:

• The trio of destiny tend to be overweight at first
• Moirae (Greek) or Parcae (Roman)
• Three goddesses lay out a feast
• Three Greek goddesses who presided over life and death
• Lots
• Lots of classical goddesses
• "Thread of life" goddesses
• Trio of Greek myth, with 'the'
• Clotho and colleagues
• Lachesis and Clotho, in myth