Agathon (ca. 448–400 BC) was an Athenian
Athens , is the capital and largest city of Greece. Athens dominates the Attica region and is one of the world's oldest cities, as its recorded history spans around 3,400 years. Classical Athens was a powerful city-state...

 tragic poet whose works, up to the present moment, have been lost. He is best known for his appearance in Plato's Symposium
Symposium (Plato)
The Symposium is a philosophical text by Plato dated c. 385–380 BCE. It concerns itself at one level with the genesis, purpose and nature of love....

which describes the banquet
In ancient Greece, the symposium was a drinking party. Literary works that describe or take place at a symposium include two Socratic dialogues, Plato's Symposium and Xenophon's Symposium, as well as a number of Greek poems such as the elegies of Theognis of Megara...

 given to celebrate his obtaining a prize for his first tragedy at the Lenaia
The Lenaia was an annual festival with a dramatic competition. It was one of the lesser festivals of Athens and Ionia in ancient Greece. The Lenaia took place in Athens in the month of Gamelion, roughly corresponding to January. The festival was in honour of Dionysos Lenaios...

 in (416). He is also a prominent character in Aristophanes
Aristophanes , son of Philippus, of the deme Cydathenaus, was a comic playwright of ancient Athens. Eleven of his forty plays survive virtually complete...

' comedy the Thesmophoriazusae
Thesmophoriazusae is one of eleven surviving plays by the master of Old Comedy, the Athenian playwright Aristophanes. It was first produced in 411 BC, probably at the City Dionysia...

. Agathon was the lifelong companion of Pausanias
Pausanias (Athenian)
Pausanias an Athenian of the deme Kerameis, and was the lover of the poet Agathon.Although Pausanias is given a significant speaking part in Plato's Symposium, very little is known about him. Ancient anecdotes tend to address only his relationship with Agathon and give us no information about his...

, with whom he appears in both the Symposium and in Plato's Protagoras
Protagoras (dialogue)
Protagoras is a dialogue of Plato. The traditional subtitle is "or the Sophists, probative". The main argument is between the elderly Protagoras, a celebrated sophist, and Socrates...