Castor and Pollux

Castor and Pollux, also known as the Dioscuri or Dioskouroi, are famous twin half-brothers from Greek and Roman mythology. Their mother was Leda. Castor’s father was Tyndareus, the king of Sparta. Pollux’s father was Zeus, the god who visited Leda as a swan. Because of this, they are sometimes called an example of heteropaternal superfecundation.

Some stories say that Castor and Pollux, along with their sisters Helen of Troy and Clytemnestra, were born from an egg. In Latin, these twins are called the Gemini, meaning “twins.” Pollux was a god and Castor was a mortal. Pollux asked Zeus to let them share his immortality so they could stay together. Because of this, they were placed in the sky as the constellation Gemini.

People in the past believed that Castor and Pollux watched over sailors. They were thought to appear as St. Elmo's fire, a glowing light near the sea. The twins were also linked to horses, which fits with their origins as the Indo-European horse twins.

Birth

Castor and Pollux, called the Dioscuri, have different stories about their parents. In some tales, they are both sons of Tyndareus, the king of Sparta. In other stories, Zeus, the king of the gods, is their father. The most common story says that Pollux was fathered by Zeus, while Castor was the son of Leda and Tyndareus.

Because of this, Pollux is sometimes seen as a god, while Castor is a mortal hero. They were known for helping people, especially sailors. They were also thought to watch over athletes and sports contests.

Classical sources

Ancient Greek writers told many stories about Castor and Pollux. The poet Homer first showed them as regular people, calling them dead in the Iliad:

"... there are two commanders I do not see,

Castor the horse breaker and the boxer

Polydeuces, my brothers ..."

– Helen, Iliad

but later in the Odyssey he said they were alive, living on alternate days because of Zeus. Both Hesiod and Pindar described them as the sons of Tyndareus and Leda, though Pindar said Pollux was the son of Zeus and Castor was the son of Tyndareus.

The Dioscuri are also mentioned in a piece by Alcaeus, and they appear together in two plays by Euripides, Helen and Elektra.

Mythology

The Dioscuri, also known as Castor and Pollux, were skilled horsemen and hunters. They joined the crew of Jason's ship, the Argo, on an adventure known as the quest of the Argonauts. During this journey, Pollux took part in a boxing match and won against King Amycus of the Bebryces.

Later, they helped Jason and Peleus by taking action against the city of Iolcus because of unfair treatment by its king, Pelias.

When their sister Helen was taken by Theseus, Castor and Pollux went to rescue her. They fought back, took Theseus's mother Aethra to Sparta, and placed Menestheus on the throne of Athens. Aethra was later returned home by her grandsons Demophon and Acamas after the events of the Troy story.

Castor and Pollux wanted to marry Phoebe and Hilaeira, but these women were already promised to Lynceus and Idas. This caused a disagreement between the families. During one meeting, Idas and Lynceus tricked Castor and Pollux. In response, Castor and Pollux later tried to take the cattle back. During this, Idas killed Castor, but Pollux then killed Lynceus. Zeus stepped in, and Pollux shared his immortality with Castor. As a result, the twins could spend time both on Mount Olympus and in Hades. They became the bright stars in the constellation Gemini, known as the twins.

Iconography

Castor and Pollux are often shown with horses. They look like men wearing helmets and holding spears. In an old book called the Pseudo-Oppian, they are shown hunting, sometimes on horses and sometimes on foot.

On special stone carvings called votive gifts, they appear with symbols that show they are twins. These symbols include two wooden pieces joined by cross-beams, called dokana, two jars called amphorae, two shields, or two snakes. They are also sometimes shown wearing special caps with stars above them. Pictures from places like Delphi show them traveling on a ship called the Argo (Ἀργώ). On Greek vases, they are shown in ceremonies. You can tell them by the special round caps they wear, called pilos (πῖλος).

Dokana

Dokana were ancient symbols of Castor and Pollux. They were made from two upright wooden beams with others laid across them. These symbols were important to the people of Sparta. The word δόκανα might come from δοκός, meaning "beam." Some old writings, like the Suda and the Etymologicum Magnum, say that δόκανα was the name for the graves of Castor and Pollux in Sparta.

Shrines and rites

The Dioskouroi, meaning Castor and Pollux, were honored by both the Greeks and Romans. They had temples in places like Athens and Rome, as well as many shrines in other parts of the ancient world.

In Sparta, they were very important. The Spartans linked them to their tradition of having two kings. When the Spartan army went to war, one king would stay home, accompanied by one of the twins. Their grave-shrine was located on a mountain top at Therapne, across the Eurotas river from Sparta.

People made special offerings to them and hung images of the twins in pear trees, which the Spartans considered sacred to Castor and Pollux. They were also invited into homes and public places for meals, a practice known as theoxenia.

City of Dioscurias

The ancient city of Dioscurias or Dioskurias on the Black Sea coast, now called Sokhumi, was named after Castor and Pollux. According to stories, they founded the city themselves. Another story says their charioteers, Amphitus and Cercius from Sparta, were the founders.

Island of Dioscuri

The island of Socotra, between the Guardafui Channel and the Arabian Sea, was called Dioskouridou (Διοσκουρίδου νῆσος) by the Greeks. This name means "the island of the Dioscuri".

Ahenobarbus/Aenobarbus

The name Ahenobarbus/Aenobarbus (Ἀηνόβαρβος) belongs to a family of the Domitia gens. This family was known for having red hair. The name means "Brazen-bearded" and comes from a story about the Dioscuri. In the story, one of the family’s ancestors heard about a Roman victory against the Latin League in the Battle of Lake Regillus from the Dioscuri. As proof, the Dioscuri touched his black hair and beard, turning them red.

Indo-European analogues

Main article: Divine twins

In many old stories from Indo-European cultures, there are tales of twin brothers. These twins are known as the Ashvins in Vedic tradition, the Ašvieniai in Lithuanian stories, and maybe even the Alcis in old Germanic tales.

Etruscan Kastur and Pultuce

The Etruscans honored the twins as Kastur and Pultuce. They called them the "tinas cliniiaras", meaning "Sons of Tinia", who was the Etruscan version of Zeus. Artists often showed these twins on special mirrors. In one famous place called the Tomb of the Funereal Bed in Tarquinia, they were shown in a special way called a lectisternium. Sometimes, they were also shown with two pointed hats topped with laurel leaves, known as Phrygian caps.

Italy and the Roman Empire

The Romans respected Castor and Pollux a lot, starting in the 5th century BCE. This respect came from Greek colonies in southern Italy called Magna Graecia. An old Latin writing from that time at Lavinium shows how important they were.

A temple for Castor and Pollux was built in the Roman Forum after a Roman win in 495 BCE. A story says the twins helped in the battle and then brought the good news back to Rome. The Romans believed the twins helped them in wars because they were good riders. Every year on July 15, many Roman horse soldiers would march through Rome in their best uniforms.

Even when Christianity became more popular, people still honored Castor and Pollux. Sometimes they were shown with Christian figures, showing how old and new beliefs mixed together.