Thebes and its allies defeated a coalition comprising Sparta, Athens and other states, but the Theban general Epaminondas died in battle. Afterwards the different parties agreed to make peace.
Citation:
Bouchard, Elsa. "Battle of Mantinea".
The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=11262, accessed 26 May 2013.]