The term 'mythological trio' refers to three figures from Greek mythology: the Fates, the Horae, and the Moirai. The Fates, also known as the Moirai, were three goddesses who controlled the destiny of mortals. They were Clotho, who spun the thread of life; Lachesis, who measured it; and Atropos, who cut it. The Horae were goddesses of the seasons and natural order, and were daughters of Zeus and Themis. They were Thallo, Auxo, and Carpo. Together, these three figures represented the power of fate and the natural order in Greek mythology.