Premise: In the Ugric mythology, Kaltes-Ekwa (Khanty, Kaltes Ankw) was the mother of the hero Mir-Susne-Hum and the wife of the god Num-Torum, who defeated her in heaven. She was also a goddess of the moon associated with the month April; a birth giving goddess (she is called upon by women in child-birth); goddess of fate; goddess of dawn and a shape-shifter, often shown manifested as a hare.
Hypothesis: The father of Kaltes-Ekwa was associated with the month of May.