Trojan War and aftermath

 In The Rage of Achilles by Giovanni Battista Tiepolo (1757, Fresco, 300 x 300 cm, Villa Valmarana, Vicenza) Achilles is outraged that Agamemnon would threaten to seize his warprize, Briseis, and he draws his sword to kill Agamemnon. The sudden appearance of the goddess Athena, who, in this fresco, has grabbed Achilles by the hair, prevents the act of violence.

For more details on this topic, see Trojan War and Epic Cycle

Greek mythology culminates in the Trojan War, fought between the Greeks and Troy, and its aftermath. In Homer's works, such as the Iliad, the chief stories have already taken shape and substance, and individual themes were elaborated later, especially in Greek drama. The Trojan War also elicited great interest in the Roman culture because of the story of Aeneas, a Trojan hero whose journey from Troy led to the founding of the city that would one day become Rome, as recounted in Virgil's Aeneid (Book II of Virgil's Aeneid contains the best-known account of the sack of Troy). Finally there are two pseudo-chronicles written in Latin that passed under the names of Dictys Cretensis and Dares Phrygius.
The Trojan War cycle, a collection of epic poems, starts with the events leading up to the war: Eris and the golden apple of Kallisti, the Judgement of Paris, the abduction of Helen, the sacrifice of Iphigenia at Aulis. To recover Helen, the Greeks launched a great expedition under the overall command of Menelaus' brother, Agamemnon, king of Argos or Mycenae, but the Trojans refused to return Helen. The Iliad, which is set in the tenth year of the war, tells of the quarrel between Agamemnon and Achilles, who was the finest Greek warrior, and the consequent deaths in battle of Achilles' beloved comrade Patroclus and Priam's eldest son, Hector. After Hector's death the Trojans were joined by two exotic allies, Penthesilea, queen of the Amazons, and Memnon, king of the Ethiopians and son of the dawn-goddess Eos. Achilles killed both of these, but Paris then managed to kill Achilles with an arrow in the heel. Achilles' heel was the only part of his body which was not invulnerable to damage by human weaponry. Before they could take Troy, the Greeks had to steal from the citadel the wooden image of Pallas Athena (the Palladium). Finally, with Athena's help, they built the Trojan Horse. Despite the warnings of Priam's daughter Cassandra, the Trojans were persuaded by Sinon, a Greek who feigned desertion, to take the horse inside the walls of Troy as an offering to Athena; the priest Laocoon, who tried to have the horse destroyed, was killed by sea-serpents. At night the Greek fleet returned, and the Greeks from the horse opened the gates of Troy. In the total sack that followed, Priam and his remaining sons were slaughtered; the Trojan women passed into slavery in various cities of Greece. The adventurous homeward voyages of the Greek leaders (including the wanderings of Odysseus and Aeneas (the Aeneid), and the murder of Agamemnon) were told in two epics, the Returns (the lost Nostoi) and Homer's Odyssey.The Trojan cycle also includes the adventures of the children of the Trojan generation (e.g., Orestes and Telemachus).
The Trojan War provided a variety of themes and became a main source of inspiration for Ancient Greek artists (e.g. metopes on the Parthenon depicting the sack of Troy); this artistic preference for themes deriving from the Trojan Cycle indicates its importance to the Ancient Greek civilization.The same mythological cycle also inspired a series of posterior European literary writings. For instance, Trojan Medieval European writers, unacquainted with Homer at first hand, found in the Troy legend a rich source of heroic and romantic storytelling and a convenient framework into which to fit their own courtly and chivalric ideals. 12th century authors, such as Benoît de Sainte-Maure (Roman de Troie [Romance of Troy, 1154–60]) and Joseph of Exeter (De Bello Troiano [On the Trojan War, 1183]) describe the war while rewriting the standard version they found in Dictys and Dares. They thus follow Horace's advice and Virgil's example: they rewrite a poem of Troy instead of telling something completely new.

Credit  : wikipedia