 After intense fighting, the Spartan right flank began to give way under the impetus of the mass of Thebans, and Cleombrotus was killed.Although the Spartans held on for long enough to rescue the body of the king, their line was soon broken by the sheer force of the Theban assault.The Peloponnesian allies on the left wing, seeing the Spartans put to flight, also broke and ran, and the entire army retreated in disarray.