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Jupiter, a MythSource painting
Roman

Jupiter

Best and Greatest · Father of Gods and Men · Thunderer

01Identity

His authority links the Roman sky with the glory of Rome. Jupiter is the Roman sky god and chief god of the Latins, associated with weather, thunder, political authority, oaths and victory. Unlike his Greek counterpart Zeus, he is distinguished here by his place in Roman state ceremonies and by the title Best and Greatest, under which sacrifices were made to affirm Roman greatness.

Top questions
  • Who is Jupiter?

    Jupiter is a Roman deity associated with the sky and weather, thunder and lightning, the Roman state and political authority, oaths and contracts, victory and triumph.
    Source

    Source

    • Essential Visual History of World Mythology
    • Roman Mythology
    • Belief and Cult
    • Religion & Classical Warfare: The Roman Empire
    • Dictionary of Mythology
    • Classical Mythology a to Z
  • What is Jupiter the god of?

    the sky and weather, thunder and lightning, the Roman state and political authority, oaths and contracts, victory and triumph
    Source

    Source

    • Essential Visual History of World Mythology
    • Roman Mythology
    • Belief and Cult
    • Religion & Classical Warfare: The Roman Empire
  • What family links are recorded for Jupiter?

    Father: Saturn, Mother: Ops, Spouse: Juno, 13 children, 5 siblings.
02Family

Parents above, children below, and the figure’s consorts named in between, the same family data as the fact box, laid out as a chart instead of a field list.

with Juno

ApolloBacchusBellonaDianaGaramantisHerculesIarbasIuventas
03The names

Jupiter Optimus Maximus

Jupiter the Best and Greatest

SourceDictionary of Mythology

Jupiter Capitolinus

Jupiter of the Capitoline Hill

SourceClassical Mythology a to Z

Jupiter Tonans

Jupiter the Thunderer

SourceReligion & Classical Warfare: The Roman Empire

Jupiter Stator

Jupiter who makes armies stand firm

SourceEssential Visual History of World Mythology

Jupiter Latiaris

Jupiter of Latium

SourceDictionary of Mythology

04The myths

4 myths, each traced to its primary text and corpus sources.

Jupiter changed Io into a white heifer and hid her in a cloud after Juno discovered his love for her. Io was the daughter of Inachus, king of Argos, and had served as a priestess of Juno. Juno saw through the disguise and asked Jupiter to give her the animal. He feared that refusal would reveal the truth, so he handed Io over.

Juno placed Io under the guard of Argus, the All-Seeing. Argus had a hundred eyes, and only two closed at a time while the others kept watch. He tethered Io to an olive tree in Juno's grove. Jupiter sent Mercury to rescue her. Mercury played music until every eye of Argus closed. He then killed the sleeping guard, cut off his head, and freed Io.

Juno honoured Argus by placing his eyes in the tail of a peacock. She then sent a gadfly to torment Io. It stung her flanks and drove her across the earth. Io went first to Dodona and reached the sea that later carried her name, the Ionian Sea. She turned north, crossed the lands by Mount Haemus and the Danube delta, travelled around the Black Sea, crossed the Cimmerian Bosphorus, and followed the River Hybristes towards the Caucasus.

Jupiter restored Io's human form. She reached the banks of the Nile and gave birth to Epaphus. Juno ordered the Curetes to steal the child, and they carried him away. Jupiter killed the Curetes. Io searched through Syria after learning that the wife of the king of Byblos nursed Epaphus there. She found her son, returned to Egypt, married Telegonus, king of the Egyptians, and raised a statue of Demeter, whom the Egyptians called Isis.

Also told of Zeus in the Greek tradition.

Jupiter and Io, a MythSource painting of the scene

In the modern world

No modern rework confirmed yet.

3 sources· checked 2026-08-24

  1. 1Greek Myths & TalesT1
  2. 2Apollodorus, The LibraryT1

    Quote

    Jupiter changed Io into a heifer, Juno entrusted her to Argus, Mercury killed him, and Io later regained human form in Egypt.

    Apollodorus, The Library

  3. 3The Greek MythsT1

Rhea wrapped a stone in swaddling clothes and gave it to Saturn on Mount Thaumasius in Arcadia. Saturn swallowed it, believing that he had swallowed his infant son, Jupiter. Rhea secretly carried Jupiter to Crete and hid him in a cave on Mount Ida. A goat named Amalthea fed him honey, while the Kouretes shouted and clashed their hands to cover his cries. In another telling, the nymph Adamanthea hid him by hanging him from a tree between earth, sea, and sky. In a further telling, Jupiter changed himself into a serpent and changed his nurses into bears when Saturn pursued him.

Jupiter grew to manhood among the shepherds of Ida. He then sought out Metis, the Titaness who lived beside the Ocean stream. She prepared a potion and told him to mix it with Saturn’s honeyed drink. Jupiter returned to his mother and became Saturn’s cup-bearer. Saturn drank deeply and vomited up the stone. He then brought up Jupiter’s five swallowed siblings, Poseidon, Hades, Demeter, Hera, and Hestia. They emerged unharmed and asked Jupiter to lead them in war against Saturn and the Titans.

Jupiter gathered the young gods and marched with the Cyclopes and the Hundred-Handers. The Cyclopes worked on magical weapons, though the weapons remained unfinished when Saturn attacked. Jupiter told his brothers and sisters that they had to fight before they were ready, because the Titans had trapped them in a valley and would charge down the slopes of Olympus and the surrounding hills. He whistled three notes and ordered the attack.

War followed between Jupiter, the young gods, and their allies on one side, and Saturn and the Titans on the other. Jupiter’s united forces overcame Saturn’s army. Saturn gave up his power, and Jupiter seized cosmic rule.

Also told of Zeus in the Greek tradition.

Jupiter Overthrows Saturn and the Titans, a MythSource painting of the scene

In the modern world

No modern rework confirmed yet.

3 sources· checked 2026-08-24

  1. 1Ultimate Greek MythologyT1
  2. 2Apollodorus, The LibraryT1

    Quote

    Saturn swallowed his children, but Jupiter escaped, freed them with Metis’s potion, and led the gods and their allies to defeat the Titans.

    Apollodorus, The Library

  3. 3War in Greek MythologyT1

The Giants rose against heaven and attacked the Olympian gods. Gaia urged them to overthrow the divine order. Their strength drove the war, which took place on the plain of Phlegra. The Giants tried to seize the sky, while Jupiter and the other Olympians defended their rule.

The Giants hurled themselves into battle. Porphyrion, their king, faced the gods, but Apollo overcame him with his bow. Athena fought Enceladus behind her Gorgon shield. Jupiter struck Mimas with a thunderbolt that blazed at both ends. Dionysus killed another Giant with his ivy staff. Heracles fought beneath his rushing arrows and killed Giants. The gods joined their powers against the attacking host, and the assault failed.

In one telling, Otus and Ephialtes, two mighty brothers, piled Mount Pelion upon Mount Ossa so that they could climb to heaven and attack the Olympians. Jupiter overturned the mountains with his thunderbolts and destroyed the Giants. Gaia then gave life to new human-shaped beings from the Giants' blood. They also hated the gods and desired savage slaughter. In another telling, the defeated Giants lay buried beneath volcanoes. Their burial caused eruptions and earthquakes in southern Italy, including the lands near Etna and Vesuvius.

Jupiter and the Gigantes, a MythSource painting of the scene

In the modern world

No modern rework confirmed yet.

2 sources· checked 2026-08-24

  1. 1War in Greek MythologyT1
  2. 2the ancient sourcesT1

    Quote

    The Gigantes rose against the gods at Phlegra, but Jupiter and the Olympians, with Heracles’ aid, defeated them and buried some beneath the earth.

    the ancient sources

Jupiter descended to earth in the shape of a man and entered the Arcadian country as twilight darkened the land. He passed the wild places of Menalus, Cyllene, and Lycaeus before reaching the harsh house of King Lycaon. Jupiter gave a sign that a god had arrived. The people prayed to him, but Lycaon mocked their devotion and resolved to test his visitor.

Lycaon planned to kill Jupiter during the night, believing that he could murder him while he slept. He went further than this and prepared a meal made with human flesh. He served it to Jupiter with the flesh of sheep and goats. Jupiter recognised the crime and rejected the banquet. He overturned the table, and the place later carried the name Trapezus. The house of Lycaon was destroyed, and the king faced the punishment that his act had earned.

Jupiter changed Lycaon into a ravening wolf. His new form showed what he had been within. His skin became hoary grey, his eyes remained fierce and glaring, and his cruel heart appeared in his shape. Jupiter then looked upon the wider wickedness of humankind and decided that such offences deserved punishment, as Lycaon’s house had been punished.

Also told of Zeus in the Greek tradition.

Jupiter Punishes Lycaon, a MythSource painting of the scene

In the modern world

No modern rework confirmed yet.

3 sources· checked 2026-08-24

  1. 1The Library of Greek Mythology (Oxford World's Classics)T1
  2. 2Apollodorus, The LibraryT1

    Quote

    Jupiter, disguised as a man, tested Lycaon, who served him human flesh, so Jupiter destroyed his house and changed him into a wolf.

    Apollodorus, The Library

  3. 3Shakespeare's Ovid, being Arthur Golding's translation of the MetamorphosesT1

The film

The Underdrawing video on Jupiter embeds here once it publishes.

Continue the road