@TrevorGoodchild @BarelyEagle AFAIK the 300 were the royal guard (Hippies) and were unmarried and childless:

>A picked corps of the hoplites, specially employed as a royal body-guard, were those known as hippeis (horsemen) composed of 300 Spartans under thirty years of age, ...
>Spartan men were not allowed to live with their wives until age 30. Spartan society didn't discourage romantic love, but marriage and childrearing were both subject to some peculiar cultural and governmental constraints. The state counseled that men should marry at age 30 and women at 20.