In Greek mythology, Aphrodite is the goddess of love, beauty and sexual rapture. According to Hesiod, she was born when Uranus (the father of the gods) was castrated by his son Cronus. Cronus threw the severed genitals into the ocean which began to churn and foam about them. From the aphros ("sea foam") arose Aphrodite, and the sea carried her to either Cyprus or Cythera. Hence she is often referred to as Kypris and Cytherea. Homer calls her a daughter of Zeus and Dione.

The greeks really have a way with their conception/birth methods. My Gods!

After her birth, Zeus was afraid that the gods would fight over Aphrodite's hand in marriage so he married her off to the smith god Hephaestus, the steadiest of the gods. He could hardly believe his good luck and used all his skills to make the most lavish jewels for her. He made her a girdle of finely wrought gold and wove magic into the filigree work. That was not very wise of him, for when she wore her magic girdle no one could resist her, and she was all too irresistible already. She loved gaiety and glamour and was not at all pleased at being the wife of sooty, hard-working Hephaestus.
Aphrodite loved and was loved by many gods and mortals. Among her mortal lovers, the most famous was perhaps Adonis. Some of her sons are Eros, Anteros, Hymenaios and Aeneas (with her Trojan lover Anchises). She is accompanied by the Graces.
Her festival is the Aphrodisiac which was celebrated in various centers of Greece and especially in Athens and Corinth. Her priestesses were not prostitutes but women who represented the goddess and sexual intercourse with them was considered just one of the methods of worship. Aphrodite was originally an old-Asian goddess, similar to the Mesopotamian Ishtar and the Syro-Palestinian goddess Ashtart. Her attributes are a.o. the dolphin, the dove, the swan, the pomegranate and the lime tree.
In Roman mythology Venus is the goddess of love and beauty and Cupid is love's messenger.

The Greek goddess of wisdom, war, the arts, industry, justice and skill. She was the favorite child of Zeus. She had sprung fully grown out of her father's head. Her mother was Metis, goddess of wisdom and Zeus' first wife. In fear that Metis would bear a son mightier than himself. Zeus swallowed her and she began to make a robe and helmet for her daughter. The hammering of the helmet caused Zeus great pain in the form of headaches and he cried out in agony. Skilled Hephaestus ran to his father and split his skull open and from it emerged Athena, fully grown and wearing her mother's robe and helmet. She is the virgin mother of Erichthnonius.

Athena and her uncle Poseidon were both very fond of a certain city in Greece. Both of them claimed the city and it was decided that the one that could give the finest gift should have it. Leading a procession of citizens, the two gods mounted the Acropolis. Poseidon struck the side of the cliff with his trident and a spring welled up. The people marveled, but the water was as salty as Poseidon's sea and it was not very useful. Athena's gift was an olive tree, which was better because it gave the people food, oil and wood. Athena named her city Athens.
Athena's companion was the goddess of victory, Nike, and her usual attribute is the owl. Athena possessed the Aegis.

The Greek earth goddess par excellence, who brings forth the fruits of the earth, particularly the various grains. She taught mankind the art of sowing and ploughing so they could end their nomadic existence. As such, Demeter was also the goddess of planned society. She was very popular with the rural population. As a fertility goddess she is sometimes identified with Rhea and Gaia.
In systematized theology, Demeter is a daughter of Cronus and Rhea and sister of Zeus by whom she became the mother of Persephone. When Persephone was abducted by Hades, lord of the underworld, Demeter wandered the earth in search of her lost child. During this time the earth brought forth no grain. Finally Zeus sent Hermes to the underworld, ordering Hades to restore Persephone to her mother. However, before she left, Hades gave her a pomegranate (a common fertility symbol). When she ate from it, she was bound to spend a third of the year with her husband in the infernal regions. Only when her daughter is with her, Demeter lets things grow (summer). The dying and blossoming of nature was thus connected with Demeter.
In the Eleusinian mysteries, Demeter and Persephone were especially venerated. When she was looking for her daughter, in the shape of an old woman called Doso, she was welcomed by Celeus, the king of Eleusis (in Attica). He requested her to nurse his sons Demophon and Triptolemus 1. To reward his hospitality she intended to make the boy Demophon immortal by placing him each night in the hearth, to burn his mortal nature away. The spell was broken one night because Metanira, the wife of Celeus, walked in on her while she was performing this ritual. Demeter taught the other son, Triptolemus, the principles of agriculture, who, in turn, taught others this art. In Demeter's honor as a goddess of marriage, women in Athens, and other centers in Greece, celebrated the feast of Thesmophoria (from her epithet Thesmophoros, "she of the regular customs"). Throughout Classical times members of all social strata came from all parts of the Mediterranean world to be initiated in and celebrate her Mysteries at Eleusis.
In ancient art, Demeter was often portrayed (sitting) as a solemn woman, often wearing a wreath of braided ears of corn. Well-known is the statue made by Knidos (mid forth century BC). Her usual symbolic attributes are the fruits of the earth and the torch, the latter presumably referring to her search for Persephone. Her sacred animals were the snake (an earth-creature) and the pig (another symbol of fertility). Some of her epithets include Auxesia, Deo, Chloe, and Sito. The Romans equated her with the goddess Ceres.

Known as Earth or Mother Earth (the Greek common noun for "land" is ge or ga). She was an early earth goddess and it is written that Gaia was born from Chaos, the great void of emptiness within the universe, and with her came Eros. She gave birth to Pontus (the Sea) and Uranus (the Sky). This was achieved parthenogenetically (without male intervention). Other versions say that Gaia had as siblings Tartarus (the lowest part of the earth, below Hades itself) and Eros, and without a mate, gave birth to Uranus (Sky), Ourea (Mountains) and Pontus (Sea).
Gaia took as her husband Uranus, who was also her son, and their offspring included the Titans, six sons and six daughters. She gave birth to the Cyclopes and to three monsters that became known as the "Hecatonchires". The spirits of punishment known as the Erinyes were also offspring of Gaia and Uranus. The Gigantes, finally, were conceived after Uranus had been castrated by his son Cronus, and his blood fell to earth from the open wound.

There again with the severed genitals! Geez people!

To protect her children from her husband, (the Cyclopes and the Hecatoncheires, as he was fearful of their great strength), Gaia hid them all within herself. One version says that Uranus was aghast at the sight of his offspring so he hid them away in Tartarus, which are the bowels of the earth. Gaia herself found her offspring uncomfortable and at times painful, when the discomfort became to much to bear she asked her youngest son Cronus to help her. She asked him to castrate Uranus, thus severing the union between the Earth and Sky, and also to prevent more monstrous offspring. To help Cronus achieve his goal Gaia produced an adamantine sickle to serve as the weapon. Cronus hid until Uranus came to lay with Gaia and as Uranus drew near, Cronus struck with the sickle, cutting the genitalia from Uranus. Blood fell from the severed genitals and came in contact with the earth and from that union was born the Erinyes (Furies), the Giants and the Meliae (Nymphs of the manna ash trees).
After the separation of the Earth from the Sky, Gaia gave birth to other offspring, these being fathered by Pontus. Their names were the sea-god Nereus, Thaumas, Phorcys, Ceto and Eurybia. In other versions Gaia had offspring to her brother Tartarus; they were Echidna and Typhon, the later being an enemy of Zeus. Apollo killed Typhon when he took control of the oracle at Delphi, which Gaia originally provided, and then the "Sibyl" sang the oracle in Gaia's shrine. It was Gaia who saved Zeus from being swallowed by Cronus, after Zeus had been born, Gaia helped Rhea to wrap a stone in swaddling clothes, this was to trick Cronus in to thinking it was Zeus, because Cronus had been informed that one of his children would depose him, and so to get rid of his children he had swallowed them, Gaia's trick worked and Zeus was then taken to Crete. Gaia being the primordial element from which all the gods originated was worshiped throughout Greece, but later she went into decline and was supplanted by other gods. In Roman mythology she was known as Tellus or Terra.

Hestia

She is the Greek goddess of the hearth fire, hence presiding over domestic life. She is the eldest sister of Zeus and the oldest daughter of Rhea and Cronus. She was a virgin-goddess, and when wooed by Poseidon and Apollo, swore by the head of Zeus to remain a virgin. She had no throne, but tended the sacred fire in the hall on the Olympus and every hearth on Earth was her altar. She is the gentlest of all the Olympians. Hestia also symbolized the alliance of the Metropolis ("mother-city") with the smaller settlements which were founded in the colonies. The colonists took fire from the hearth in the prytaneion and kept it burning in their new towns. The Romans called her Vesta, and build a temple for her in the Forum.

Hera

The queen of the Olympian deities. She is the eldest daughter of Cronus and Rhea, and wife and sister of Zeus. Hera was mainly worshipped as a goddess of marriage and birth. It is said that each year Hera's virginity returns by bathing in the well Canathus. The children of Hera and Zeus are the smith-god Hephaestus, the goddess of youth Hebe, and the god of war Ares. According to some sources, however, her children were conceived without the help of a man, either by slapping her hand on the ground or by eating lettuce: thus they were born, not out of love but out of lust and hatred.
Writers represented Hera as constantly being jealous of Zeus's various amorous affairs. She punished her rivals and their children, among both goddesses and mortals, with implacable fury. She placed two serpents in the cradle of Heracles; she had Io guarded by a hundred-eyed giant; she drove the foster-parents of Dionysus mad, and tried to prevent the birth of Apollo and Artemis. Even Zeus usually could not stand up to her. Sometimes when he got angry, he chained her to the mountain of Olympus by fastening anvils to her feet. However, most of the time Zeus resorted to stratagems: he either hid his illegitimate children, or he changed them into animals.
Hera's main sanctuary was at Argos in the Peloponnesus, where she was worshipped as the town goddess. Also, in this town the Heraia, public festivities, were celebrated. Other temples stood in Olympia, Mycene, Sparta, Paestum, Corinth, Tiryns, Perachora, and on the islands of Samos and Delos. The peacock (the symbol of pride; her wagon was pulled by peacocks) and the cow (she was also known as Bopis, meaning "cow-eyed", which was later translated as "with big eyes") are her sacred animals. The crow and the pomegranate (symbol of marriage) are also dedicated to her. Other attributes include a diadem and a veil. Hera is portrayed as a majestic, solemn woman.
Her Roman counterpart is Juno.
Source of Page: Encyclopaedia Mythica.......I think