The Agesilaus (Greek: Ἀγησίλαος) is an account of the life of King Agesilaus II of Sparta by Xenophon, one of the earliest examples of biographical writing.
Xenophon had been exiled from his native Athens after fighting alongside Agesilaus and the Spartans at Coronea in 394 BC. Along with his Constitution of the Laecedaemonians, The Agesilaus provides strong illustration of Xenophon's pro-Spartan leanings.
Free Online Texts
Internet Archive: Xenophon's Agesilaus; with syntax rules and references, notes and indices. Greek text, edited by R.W. Taylor (1880).
Gutenberg: Agesilaus. Multiple formats.
Loebulus. L183 - Xenophon -- Scripta Minora: Hiero. Agesilaus. Constitution of the Lacedaemonians. Ways and Means. Cavalry Commander. Art of Horsemanship. On Hunting. Constitution of the Athenians. PDF of public domain Loeb edition in Greek and English.
University of Adelaide (Internet Archive): Agesilaus, translated by H.G. Dakyns. Multiple formats.
Wikisource: Agesilaus, English translation by H.G. Dakyns. Downloads via Book Creator.
BBC Radio 4 In Our Time: Xenophon. Melvyn Bragg with Paul Cartledge, Edith Hall and Simon Goldhill.
Internet Encyclopedia of Philosophy: Xenophon, by Eve A. Browning.
Wikipedia: Agesilaus (Xenophon).
The Great Conversation: Further reading at Tom's Learning Notes
Xenophon: Hellenica - an account of Greek history in the 4th century BC that includes some overlapping text with the Agesilaus.
Plutarch: Parallel Lives - a biography of Agesilaus is paired with one of Pompey the Great.
Ancient Greek resources: Learn to read Greek classics in the original.