The White Bull
The story is based on the Greek mythological tale of Europa and the bull, where the white bull is the king of the Greek gods, Zeus, in disguise. Zeus, the sky and thunder god of the Olympic pantheon, often wore a disguise when romantically pursuing mortal women, so as to avoid the eye of his wife and sister, Hera.
Zeus (Marvel Comics)
Zeus is the youngest son of the Titans Cronus and Rhea, the children of sky god Ouranos and elder goddess Gaea (also known as "Mother Earth"). His father Cronus rose to power in the dimension which later became known as Olympus, after fatally wounding his own father Ouranos. As he lay dying, Ouranos prophesied that one of the children of Cronus would overthrow him in turn, so Cronus ate each of his children as they were born. His wife Rhea hid Zeus, their sixth child, on Mount Lycaeum in Arcadia, and tricked Cronos into eating a stone instead of the infant Zeus. There Zeus grew to adulthood and then plotted his revenge on Cronus. Zeus, out of revenge, went down to Tartarus and freed his siblings Hades, Hestia, Hera, Poseidon, and Demeter, all now grown to adulthood, as well as the three Cyclopes, and the three hundred-handed giants called Hekatoncheries, which he had also imprisoned. The Cyclopes gave the three gods their respective weapons (Zeus' thunderbolt, Poseidon's trident, and Hades' Helm of Darkness) and taught Zeus how to wield his energy-manipulating powers, and Zeus led his allies in a ten-year war against Cronus and the Titans. After winning the war, Zeus imprisoned Cronus and most of the male Titans in Tartarus. Zeus drew lots with his brothers Hades and Poseidon, and became supreme ruler of the Olympian gods, their dimension and the sky. Zeus married Hera, but engaged in many relationships with goddesses and mortal women alike, angering his jealous wife. Some of his children from these unions were gods, and joined the Olympian pantheon, while others were mortals such as Helen of Troy and the hero Hercules who eventually became a god.