How to portray a Spartan king from the classical era?

[hoplite14gr]

Yes, based on writings there is reason tobelive that those married into the clan had variations of the clan emblem.
The some the heralds were trumpeteers. They were among the ranks and they might be fighting.
Herald and priest were hereditary posts.

The "personal emblem" issue seems it was the variation of the unit/clan emblem.
In Loyvre there is a hoplite with the rooster and a shamrock on his shield.

Kind regards