Young Red Haired Girl Posing At The Wall

There is a tradition amongst astrologers that the planet Mars ("the red planet") is more likely to be rising above the eastern horizon (on or near the astrological Ascendant, which supposedly influences a person's appearance) at the time of the birth of a red haired person than for the population in general.
Achilles, the central character of Homer's Iliad, is described as having red hair, possibly contributing to the original myths of temperament.