Open up the faction file, there should be a line that is <SovereignUnitType>[sovereign internal name goes here]</SovereignUnitType> if not copy it into the file below the <RaceClassification>[race name goes here]</RaceClassification> line.

Internal sovereign name can be found in the file containing the custom sovereign at the beginning of its data.

Were is this faction file located. I'm in the Elemental Directory and I looked in every fold but I'm not finding it. I am a bit of a noob at this.

Is there anyway to make the AI pick from a pool of multiple sovereigns for a given faction?

But can I limit that random draw to 2 or 3 of the say 12 sovereign?

Ok following the instructions both my friend and I copied the

<SovereignUnitType>[sovereign internal name goes here]</SovereignUnitType>

to the  file below the <RaceClassification>[race name goes here]</RaceClassification> line.

Now we got a weird result.  I created 5 factions and 5 Soverigns  my friend created 10 of each. We associated using the instruction above each Custom soverign to a Custom faction then started a game only using the custome factions. This is what happen:

My Friend: During the game all factions had the same custom Soverign instead of the assigned soverign.

My Games: What I found is that the Soverigns were with the wrong factions

We both checked the files to see if we made an error in coping but the Custom factions and the correct Soverigns name in it. I enlisted the help of a third friend to also check our files but he confirmed that they were correct according to the instructions.

We tested this on many games with the same results.  

Any Idea what we did wrong?

and this forum can be usefull for your first xml editing:

https://forums.elementalgame.com/389940