Diadem in the context of Circlet

In ancient Greek religion, Hera (/ˈhɛrə, ˈhɪərə/; Ancient Greek: Ἥρα, romanized: Hḗrā; Ἥρη, Hḗrē in Ionic and Homeric Greek) is the goddess of marriage, women, and family, and the protector of women during childbirth. In Greek mythology, she is queen of the twelve Olympians and Mount Olympus, sister and wife of Zeus, and daughter of the Titans Cronus and Rhea. One of her defining characteristics in myth is her jealous and vengeful nature in dealing with any who offended her, especially Zeus's numerous adulterous lovers and illegitimate offspring.

Her iconography usually presents her as a dignified, matronly figure, upright or enthroned, crowned with a polos or diadem, sometimes veiled as a married woman. She is the patron goddess of lawful marriage. She presides over weddings, blesses and legalises marital unions, and protects women from harm during childbirth. Her sacred animals include the cow, cuckoo, and peacock. She is sometimes shown holding a pomegranate as an emblem of immortality. Her Roman counterpart is Juno.

Cleopatra VII, the last ruler of the Ptolemaic Kingdom of Egypt, died on either 10 or 12 August, 30 BC, in Alexandria, when she was 39 years old. According to popular belief, Cleopatra killed herself by allowing an asp (Egyptian cobra) to bite her, but according to the Roman-era writers Strabo, Plutarch, and Cassius Dio, Cleopatra poisoned herself using either a toxic ointment or by introducing the poison with a sharp implement such as a hairpin. Modern scholars debate the validity of ancient reports involving snakebites as the cause of death and whether she was murdered. Some academics hypothesize that her Roman political rival Augustus (Octavian) forced her to kill herself in a manner of her choosing. The location of Cleopatra's tomb is unknown. It was recorded that Octavian allowed for her and her husband, the Roman politician and general Mark Antony, who stabbed himself with a sword, to be buried together properly.

Cleopatra's death effectively ended the final war of the Roman Republic between the remaining triumvirs Octavian and Antony, in which Cleopatra aligned herself with Antony, father to three of her children. Antony and Cleopatra fled to Egypt following their loss at the 31 BC Battle of Actium in Roman Greece, after which Octavian invaded Egypt and defeated their forces. Committing suicide allowed her to avoid the humiliation of being paraded as a prisoner in a Roman triumph celebrating the military victories of Octavian, who would become Rome's first emperor in 27 BC and be known as Augustus. Octavian, rival heir of Julius Caesar had Cleopatra's son Caesarion (also known as Ptolemy XV) killed in Egypt but spared her children with Antony and brought them to Rome. Cleopatra's death marked the end of the Hellenistic period and Ptolemaic rule of Egypt, as well as the beginning of Roman Egypt, which became a province of the Roman Empire.

The reign of Cleopatra VII of the Ptolemaic Kingdom of Egypt began with the death of her father, Ptolemy XII Auletes, by March 51 BC. It ended with her suicide in August 30 BC, which also marked the conclusion of the Hellenistic period and the annexation of Egypt into a Roman province. In the style of her Greek predecessors, Cleopatra reigned over Egypt and other territories as an absolute monarch, although the Roman Republic frequently interfered in its internal affairs. Her personal rule of Egypt was characterized by a continued reliance on agriculture, extensive trade and conflict with other states, the tackling of corruption, strategic management of the bureaucracy, and ambitious building projects.

Cleopatra initially acceded to the throne alongside her younger brother Ptolemy XIII, but a fallout between them led to open civil war. Further chaos ensued when the Roman consul Julius Caesar pursued his rival Pompey into Ptolemaic Egypt, a Roman client state. Upon arrival, Caesar discovered that Pompey had been assassinated on the orders of Ptolemy XIII. Caesar attempted to reconcile the siblings, but a discontent Ptolemy XIII and his adviser Potheinos raised forces against Caesar and Cleopatra. Reinforcements lifted the siege in early 47 BC, and Ptolemy XIII died shortly afterwards in the Battle of the Nile. Arsinoe IV (Cleopatra's younger sister and a rival claimant to the throne) was exiled, and Caesar, now dictator, declared Cleopatra and her younger brother Ptolemy XIV co-rulers of Egypt. However, Caesar maintained a private affair with Cleopatra that produced a son, Caesarion, before he departed Alexandria for Rome.

A radiant or radiate crown, also known as a solar crown, sun crown, Eastern crown, or tyrant's crown, is a crown, wreath, diadem, or other headgear symbolizing the Sun or more generally powers associated with the Sun. It comprises a number of narrowing bands going outwards from the wearer's head, to represent the rays of the Sun. These may be represented either as flat, on the same plane as the circlet of the crown, or rising at right angles to it.

Coinage of the Ptolemaic kingdom was struck in Phoenician weight, also known as Ptolemaic weight (about 14.2 grams) which was the weight of a Ptolemaic tetradrachm. This standard, which was not used elsewhere in the Hellenistic world, was smaller than the dominant Attic weight (about 17.28 grams) which was the weight of standard Hellenistic tetradrachm. Consequentially, Ptolemaic coins are smaller than other Hellenistic coinage. In terms of art, the coins, which were made of silver, followed the example set by contemporary Greek currencies, with dynastic figures being typically portrayed. The Ptolemaic coin making process often resulted in a central depression, similar to what can be found on Seleucid coinage.

The Ptolemaic dynasty introduced standard coinage to Egypt, where pre-existing native dynasties made only very limited use of coins. Egyptian gold stater was the first coin ever minted in ancient Egypt around 360 BC during the reign of pharaoh Teos of the 30th Dynasty. These coins were used to pay salaries of Greek mercenaries in his service.

The early life of Cleopatra VII covers the period from Cleopatra's birth in early 69 BC to her accession to the throne during or before March 51 BC. Cleopatra was born to the reigning pharaoh of Ptolemaic Egypt, Ptolemy XII Auletes; the identity of her mother is disputed and is presumed to have been Cleopatra V or Cleopatra VI, who may have been the same person. During her early childhood, Cleopatra was brought up in the palace of Alexandria in Egypt and received a primarily Hellenistic Greek education. By adulthood she was well-versed in many languages, including Egyptian, Ethiopian, Hebrew, Arabic, Median, Parthian, Latin, and her native Koine Greek.

Cleopatra's father was a client ruler of the Roman Republic. When the Romans annexed Cyprus and Ptolemy XII's brother Ptolemy of Cyprus chose to commit suicide rather than go into exile, Ptolemy XII became unpopular with the masses in Egypt for offering no public reaction to the events. He and a daughter, ostensibly Cleopatra and not Arsinoe IV, were exiled from Egypt during a revolt. This allowed Cleopatra's older sister Berenice IV to claim the throne in 58 BC, ruling jointly with Cleopatra VI. Ptolemy XII and Cleopatra traveled to Roman Italy, staying outside Rome at the villa of their Roman patron, Pompey the Great. After Ptolemy XII orchestrated the assassinations of Berenice IV's diplomats in Rome, seeking to gain Roman favor, he and Cleopatra left the city's hostile environment and settled at Ephesus in Anatolia.

The kausia or causia (Ancient Greek: καυσία) was an ancient Macedonian flat hat. A purple kausia with a diadem was worn by the Macedonian kings as part of the royal costume.

Zoilus I Dicaeus (Ancient Greek: Ζωΐλος Δίκαιος, romanized: Zōïlos Díkaios; epithet means "the Just") was an Indo-Greek king who ruled in Afghanistan and Pakistan, and occupied the areas of the Paropamisade and Arachosia previously held by Menander I. He may have belonged to the dynasty of Euthydemus I.

A tiara (from Latin tiara, from Ancient Greek τιάρα (tiára)) is a head ornament adorned with jewels. Its origins date back to ancient Greco-Roman world. In the late 18th century, the tiara came into fashion in Europe as a prestigious piece of jewelry to be worn by women at formal occasions. The basic shape of the modern tiara is a semicircle, usually made of silver, gold, or platinum and richly decorated with precious stones, pearls, or cameos.

Tiaras were extremely popular during the late 19th century and were worn at events where the dress code was white tie. After World War I, wearing a tiara gradually fell out of fashion, except for official occasions at a royal court. Interest in tiaras has increased again since the beginning of the 21st century. The word tiara is often used interchangeably with the word diadem.

In ancient Greek costume, a tainia (Ancient Greek: ταινία; pl.: ταινίαι or Latin: taenia; pl.: taeniae) was a headband, ribbon, or fillet.

The tainia headband was worn with the traditional ancient Greek costume. The headbands were worn at Greek festivals. The gods also bound their heads with tainiai. Furthermore, cult images, trees, urns, monuments, animal sacrifices and the deceased had tainiai wound around them. They were later adopted by the Romans. A similar type of headband was the diadema, used as a symbol for kings.

The Aegina Treasure or Aigina Treasure is an important Minoan gold hoard said to have been found on the island of Aegina, Greece. Since 1892, it has been part of the British Museum's collection. It is one of the most important groups of Minoan jewellery.

The Aegina Treasure is composed largely of gold jewellery that has been dated, based on its style and iconography, to the Greek Bronze Age between 1850 and 1550 BC, so "Middle Minoan II" and III in most versions of the Minoan chronology. It includes two pairs of ornate earrings, three diadems, a chest pendant, a bracelet, a gold cup, four rings, ornamented plaques and plain strips. There are also five hoops or rings and many beads and pendants made of a variety of materials including gold, lapis lazuli, amethyst, quartz, cornelian and green jasper.

A visionary, defined broadly, is one who can envision the future. For some groups, visioning can involve the supernatural.

Though visionaries may face accusations of hallucinating,people may succeed in reaching a visionary state via meditation,lucid dreams, daydreams, or art. One example of a visionary is Hildegard of Bingen, a 12th-century artist and Catholic saint. Other visionaries in religion include St Bernadette (1844-1879) and Joseph Smith (1805-1844), said to have had visions of and to have communed with the Blessed Virgin and the Angel Moroni, respectively. There is also the case of the Targum Jonathan, which was produced in antiquity and served as the targum to the Nevi'im. It described the significance of the turban or a diadem to indicate a capability on the part of Jewish priests to become agents of visionary experience.

Jovinus was a Gallo-Roman senator and claimed to be Roman Emperor (411–413 AD).

Following the defeat of the usurper known as Constantine III, Jovinus was proclaimed emperor at Mainz in 411, a puppet supported by Gundahar, king of the Burgundians, and Goar, king of the Alans. Jovinus kept his position in Gaul for two years, long enough to issue coinage that showed him wearing the imperial diadem. He was supported by a number of local Gallo-Roman nobles who had survived Constantine's defeat.

The French Crown Jewels (French: Joyaux de la Couronne de France) and Regalia comprise the crowns, orb, sceptres, diadems and jewels that were symbols of Royal or Imperial power between 752 and 1870. These were worn by many Kings and Queens of France as well as Emperor Napoleon. The set was finally broken up, with most of it sold off in 1885 by the Third Republic. The surviving French Crown Jewels, principally a set of historic crowns, diadems and parures, are mainly on display in the Galerie d'Apollon of the Louvre, France's premier museum and former royal palace, together with the Regent Diamond, the Sancy Diamond and the 105-carat (21.0 g) Côte-de-Bretagne red spinel, carved into the form of a dragon. In addition, some gemstones and jewels (including the Emerald of Saint Louis, the Ruspoli sapphire and the diamond pins of Queen Marie Antoinette) are on display in the Treasury vault of the Mineralogy gallery in the National Museum of Natural History.

On 19 October 2025, eight of the jewels were stolen from the Galerie d'Apollon. The location of the stolen jewels is unknown; the Crown of Empress Eugénie was also initially stolen but was dropped during the thieves' escape and recovered in a damaged condition. The exact extent of the damage is still unknown, but was later revealed to be severe, with "delicate" repair needed for possible restoration.