When Epaminondas heard that his friend Pelopidas was dead, he grieved sorely; but nevertheless, knowing that his country had need of him, he vigorously continued his preparations to meet and conquer the Spartan army.

The battle promised to be hard fought; for while Epaminondas, the victor of Leuctra, led the Thebans, Agesilaus, the hero of countless battles, was again at the head of the Spartan army. The Thebans pressed forward so eagerly, however, that the two armies met at Mantinea, in the central part of the Peloponnesus.