General Carrodus is now a champion (level 9 I think) that can be recruited if you find it (and have the money, and the tech). It is not a sovereign. Another question is that you create a sov, and call him "General Carrodus"...

There are 2 factions that were created (umber and mancers, I think) but did not get a sovereign. So, you have to create a sov for them, to play with/versus them. Remember to choose the proper faction when creating...

Apart from these basic factions, you can create new factions, only that they will share one of the available faction blood, but you can customize other traits.

So you can create as many sovs/factions as you wish, if you like populated maps...I saw a post of someone telling he is playing with 20 AI, and he would like to add up to 40 or more... I was curious, so I created a huge map (see Mods Forum) with 20 AI to try...very funny...although the game is gonna be looong...until i get bored and lead for the Master Quest or the Spell of making, but it really deserves to try

Thanks for the replies, and yes I have gone into the CoreUnits.xml and turned both Carrodus and Kulan into Sovereigns of their respective empires again.  Everything seems to be working ok, I can post up the modified <UnitType> entries if anybody is interested.

It is just a matter of making a few tweaks then downgrading their abilities to reflect a starting Sovereign so Carrodus I left with Air I, Life I, added Wealthy (Capitar) and Veteran (he has been around a bit and is meant to be quite old I think).  Kulan I left with Death II, Water I and added Brilliant.

Ok here are the unit entries that you need to make Carrodus and Kulan turn into Sovereigns again.  You just have to open your CoreUnits.XML file, and replace the existing entries with these.

The Sovereign abilities are in my previous post, both come equipped with a Rusty Shortsword.  Carrodus favours Mobile Warfare (likes to build mounted troops) while Kulan prefers Swordsman (Skath Claw etc.).  The only thing I haven't changed is the backstory voiceover, both of which are defaulted to Relias' - but that is pretty minor.  Everything else all works fine as far as I can tell.  BUT I haven't tested this extensively so use at your own risk and make a backup of your CoreUnits.XML file. 

General Carrodus

<UnitType InternalName="Champion_Carrodus">
        <DisplayName>General Carrodus</DisplayName>
        <UnitDisplayName>General Carrodus</UnitDisplayName>
        <Class>Sovereign</Class>
        <Allegiance>Kingdom</Allegiance>
        <CreatureType>Champion</CreatureType>
        <RaceType>Race_Type_Mancers</RaceType>
        <Unique>1</Unique>
        <CanBeDesigned>0</CanBeDesigned>
  <FactionToLead>KingdomOfCapitar</FactionToLead>
        <Gender>Male</Gender>
        <HasWages>0</HasWages>
        <IsSovereign>1</IsSovereign>
 <HasEssence>1</HasEssence>
        <GameModifier>
            <ModType>Resource</ModType>
            <Attribute>Unrest</Attribute>
            <Value>-10</Value>
            <Provides>-10% Unrest in the city this unit is in</Provides>
        </GameModifier>
     <GameModifier>
       <ModType>Player</ModType>
       <Attribute>AbilityBonus</Attribute>
       <StrVal>A_FactionPrestige</StrVal>
       <Value>0.5</Value>
       <PerLevel>1</PerLevel>
       <Provides>+0.5 Faction Prestige per Level</Provides>
   </GameModifier>
        <LevelMilestone InternalName="L1">
            <Level>1</Level>
            <UnitStat_Accuracy>75</UnitStat_Accuracy>
            <UnitStat_CombatSpeed>22</UnitStat_CombatSpeed>
            <UnitStat_ChanceToCrit>1</UnitStat_ChanceToCrit>
            <UnitStat_HitPoints>15</UnitStat_HitPoints>
        </LevelMilestone>
        <SelectedAbilityBonusOption>Blood_Mancer</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>General</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>Air1</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>Life1</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>Wealthy</SelectedAbilityBonusOption>
 <SelectedAbilityBonusOption>VeteranSovereign</SelectedAbilityBonusOption>
        <AutoCreateEquipment>Shortsword_Crude</AutoCreateEquipment>    
        <Equipment>K_Male_Head_05</Equipment>
        <Equipment>CarrodusGreatcoat</Equipment>
        <Equipment>Sovereign_Short_Hair_03</Equipment>
        <Equipment>Noblemans_Pants_ID1</Equipment>
        <Equipment>Basic_Boots</Equipment>
        <Equipment>Sovereign_Nobleman_Shirt_ID1</Equipment>       
        <Backstory>Born somewhere in the Central Wastelands to parents he no longer remembers, Carrodus made his way to the city of Ruvenna as a youth. He worked as a pickpocket until he was old enough to be trained as a soldier in service to the Merchant-Lords of Surrane and Calder. He is a natural fighter and an inspiring leader of men.</Backstory>
        <LorebookIntroText>When the scribes write the history of these times - when they tell the tale of how, from the ashes of the Cataclysm, civilization arose once more - you are determined your name will figure prominently in their accounts.

It will be the story of the triumph of will - your will. Of a young boy who never knew his parents, an orphan raised on the streets of ruined Ruvenna, a soldier of prodigious fighting ability who rose to command, who made himself not just a master of arms, but an adept in the channeler's art.

Your first step on the road to writing that history begins now.</LorebookIntroText>
        <LorebookIntroVoiceover>Intro_Relias</LorebookIntroVoiceover>
   <AIMilitaryStrategy>MobileWarfare</AIMilitaryStrategy>
 <PossibleAITrait>Proud</PossibleAITrait>
        <PossibleAITrait>Greedy</PossibleAITrait>
        <PossibleAITrait>Manipulator</PossibleAITrait>
        <PossibleAITrait>Paranoid</PossibleAITrait>
        <Medallions InternalName="">
            <All>K_Carrodus_Card_01.png</All>
        </Medallions>
        <AnimationPack>GeneralCarrodusAnimationPack</AnimationPack>
        <BattleAnimationBehavior>Melee</BattleAnimationBehavior>
        <ClothMapScale>1.6</ClothMapScale>
        <ClothPoseIndex>12</ClothPoseIndex>
        <Color_Clothing1>159,181,207,255</Color_Clothing1>
        <Color_Clothing2>84,31,75,255</Color_Clothing2>
        <Color_Hair>210,175,125,255</Color_Hair>
        <Color_Metal>171,175,200,255</Color_Metal>
        <Color_Skin>214,145,100,255</Color_Skin>
        <CutSceneDataPack>Carrodus_CutscenePack</CutSceneDataPack>
        <EyeTexture>gfx\eyes\blinks\eyeblink_m4_grn.png</EyeTexture>
        <InfoCardBackground>BG_KingdomBarren</InfoCardBackground>
        <InfoCardBackgroundFlipped>0</InfoCardBackgroundFlipped>
        <ModelPath>Gfx\HKB\Units\K_Male_Mesh_01.hkb</ModelPath>
        <ModelScale>1</ModelScale>
        <MovingSFX>TEMP_KnightMarching1</MovingSFX>
        <OnHitParticleName>Bloody_OnHit</OnHitParticleName>
        <SkeletonPath>Gfx\HKB\Units\K_Male_Skeleton_01.hkb</SkeletonPath>
        <SoundPack>SoundPack_Generic_Male</SoundPack>
        <TacticalModelScale>1.5</TacticalModelScale>
        <Texture_Eyes>gfx\eyes\blinks\eyeblink_m4_grn.png</Texture_Eyes>
        <Texture_Skin>K_Male_Warrior_Texture_01.png</Texture_Skin>
        <UnitModelType>MancerMale</UnitModelType>
    </UnitType>

Kul-Al-Kulan

<UnitType InternalName="Champion_Kulan">
        <DisplayName>Kul-Al-Kulan</DisplayName>
        <UnitDisplayName>Kul-Al-Kulan</UnitDisplayName>
        <Class>Sovereign</Class>
        <Allegiance>Empire</Allegiance>
        <CreatureType>Champion</CreatureType>
        <RaceType>Race_Type_Urxen</RaceType>
        <Unique>1</Unique>
        <CanBeDesigned>0</CanBeDesigned>
 <FactionToLead>EmpireOfUmber</FactionToLead>
        <Gender>Male</Gender>
        <HasWages>0</HasWages>
   <IsSovereign>1</IsSovereign>
   <HasEssence>1</HasEssence>
        <GameModifier>
            <ModType>Resource</ModType>
            <Attribute>Unrest</Attribute>
            <Value>-10</Value>
            <Provides>-10% Unrest in the city this unit is in</Provides>
        </GameModifier>
 <GameModifier>
       <ModType>Player</ModType>
      <Attribute>AbilityBonus</Attribute>
       <StrVal>A_FactionPrestige</StrVal>
      <Value>0.5</Value>
       <PerLevel>1</PerLevel>
      <Provides>+0.5 Faction Prestige per Level</Provides>
   </GameModifier>
        <LevelMilestone InternalName="L1">
            <Level>1</Level>
            <UnitStat_Accuracy>75</UnitStat_Accuracy>
            <UnitStat_CombatSpeed>22</UnitStat_CombatSpeed>
            <UnitStat_ChanceToCrit>1</UnitStat_ChanceToCrit>
            <UnitStat_HitPoints>15</UnitStat_HitPoints>
        </LevelMilestone>
        <SelectedAbilityBonusOption>Blood_Urxen</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>Beastlord</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>Death1</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>Death2</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>Brilliant</SelectedAbilityBonusOption>
        <SelectedAbilityBonusOption>Water1</SelectedAbilityBonusOption>
        <AutoCreateEquipment>Shortsword_Crude</AutoCreateEquipment>     
        <Equipment>F_Male_Head_06</Equipment>
        <Equipment>Sion_Cloak_ID1</Equipment>
        <Equipment>Large_Sion_Boots_ID2</Equipment>
        <Equipment>F_Mohawk_Hair_Mesh_01</Equipment>
        <Equipment>Fallen_Umber_Vest_ID2</Equipment>
        <Equipment>Fallen_Leather_Shirt_ID1</Equipment>      
        <Backstory>Kulan is the leader of a great Fallen empire that survived the Cataclysm, and a channeler of dark magics. Some say that he is neither Man or Fallen but a hybrid. And some go further and say that he was not born but spawned by Morrigan the Damned, within the caverns of lost Calebethon.</Backstory>
        <LorebookIntroText>You do not know who - or what - you are.

Your earliest memories are of Calebethon, and the great laboratories of Morrigan the Mad, deep in the caverns of this world. There are some who say you were made there, that you are not truly Fallen, as you appear, but a creature forged of equal parts man, and Urxen warrior. For centuries, you lived in that darkness, apprenticed to the mad Emperor, serving as his assistant in all matters of necromancy and science.

When Morrigan died, you made your way to Cyndrum, where you served the Lady Umber until she perished in the cataclysm. Now you seek to raise an Empire of your own.</LorebookIntroText>
        <LorebookIntroVoiceover>Intro_Relias</LorebookIntroVoiceover>
 <AIMilitaryStrategy>Swordsman</AIMilitaryStrategy>
 <PossibleAITrait>Paranoid</PossibleAITrait>
        <PossibleAITrait>MonsterHunter</PossibleAITrait>
        <PossibleAITrait>Builder</PossibleAITrait>
        <PossibleAITrait>Adventurous</PossibleAITrait>
        <Medallions InternalName="">
            <All>F_Kul-al-Kulan_Card_01.png</All>
        </Medallions>
        <AnimationPack>KulanAnimationPack</AnimationPack>
        <BattleAnimationBehavior>Melee</BattleAnimationBehavior>
        <ClothMapScale>1.6</ClothMapScale>
        <ClothPoseIndex>7</ClothPoseIndex>
        <Color_Clothing1>138,61,13,255</Color_Clothing1>
        <Color_Clothing2>30,20,10,255</Color_Clothing2>
        <Color_Hair>45,45,65,255</Color_Hair>
        <Color_Metal>50,35,31,255</Color_Metal>
        <Color_Skin>165,165,170,255</Color_Skin>
        <CutSceneDataPack>KulanCutscenePack</CutSceneDataPack>
        <EyeTexture>gfx\Eyes\blinks\eyeblink_m1_brwn.png</EyeTexture>
        <InfoCardBackground>BG_BarrenForest</InfoCardBackground>
        <InfoCardBackgroundFlipped>1</InfoCardBackgroundFlipped>
        <ModelPath>Gfx\HKB\Units\F_Male_Mesh_01.hkb</ModelPath>
        <ModelScale>1</ModelScale>
        <MovingSFX>TEMP_KnightMarching1</MovingSFX>
        <OnHitParticleName>Bloody_OnHit</OnHitParticleName>
        <SkeletonPath>Gfx\HKB\Units\K_Male_Skeleton_01.hkb</SkeletonPath>
        <SoundPack>SoundPack_Generic_Male</SoundPack>
        <TacticalModelScale>1.5</TacticalModelScale>
        <Texture_Eyes>gfx\eyes\blinks\eyeblink_m5_White.png</Texture_Eyes>
        <Texture_Skin>Trog_Skin_M_04.png</Texture_Skin>
        <UnitModelType>UrxenMale</UnitModelType>
    </UnitType>