 Complete the following phrase:  In the Peloponnesian War the Tegeatae were the firm allies of the Spartans, to whom they remained faithful both on account of their possessing an aristocratical constitution, and from their jealousy of the neighbouring democratical city of Mantineia, with which they were frequently at war. Thus the Tegeatae not only refused to join the Argives in the alliance formed against Sparta in 421 BCE, but they accompanied the Lacedaemonians in their expedition against Argos in 418 BCE. They also fought on the side of the Spartans in the 