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.
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 16 September 2014.]