 In 384 BC he served in a Theban contingent sent to the support of the Spartans during the Siege of Mantinea, where he was saved, when dangerously wounded by the Arcadians, by Epaminondas and Agesipolis.Plutarch says that this incident firmly cemented their friendship, and Pelopidas would be Epaminondas's partner in politics for the next twenty years.According to Plutarch's Life of Pelopidas (from Plutarch’s Parallel Lives in which Pelopidas‘s life was paired with the life of Marcellus), he lessened his inherited estate by showing constant care for the deserving poor of Thebes, taking pleasure in simple clothing, a sparse diet, and the constant hardships of military life.