For whatever reason, TPTB haven't given us an AToW affiliation for the Lothian League. Given their history, I settled on three different versions.
At first, they're just OG Taurians from the days of the Star League (Era Report: 2750). After the fall of the Star League, I categorized them as a "Minor Periphery Power", and after the Marian conquest, an "Independent":
1st-3rd Generations (2691-2787), essentially still Major Periphery State/Taurian
Module Cost: 100
Primary Language: English
Secondary Languages: French, Spanish
Fixed XP:
[Traits]
Compulsion/Hatred of Star League (–100 XP)
Equipped (–50 XP)
Taurian Concordat:
[Attributes]
INT (+100 XP)
WIL (+150 XP)
CHA (–50 XP)
EDG (+50 XP)
[Traits]
Compulsion/Hatred of House Davion (–100 XP)
Compulsion/Stubborn (–100 XP)
Equipped (+75 XP)
[Skills]
Career/Any (+15 XP)
Language/Any Taurian Concordat Secondary (+15 XP)
Martial Arts (+15 XP)
Negotiation (+15 XP)
Perception (+15 XP)
Small Arms (+20 XP)
Streetwise/Taurian Concordat (+15 XP)
Survival/Any (+15 XP)
4th-12th Generations (2787-3055), Minor Periphery State/Lothian League
Module Cost: 75
Primary Language: English
Secondary Languages: French, Spanish
Fixed XP:
[Traits]
Equipped (–150 XP)
[Skills]
Perception (+15 XP)
Survival/Any (+20 XP)
Lothian League:
[Attributes]
INT (+100 XP)
WIL (+150 XP)
CHA (–50 XP)
EDG (+50 XP)
[Traits]
Compulsion/Stubborn (–100 XP)
Compulsion/Distrust (Hatred after 2933) of Inner Sphere (-100 XP)
Equipped (+100 XP)
[Skills]
Perception (+15 XP)
Small Arms (+15 XP)
Survival/Arctic (+10)
13th+ Generations (3055+), Independent/Lothian League
Module Cost: 50
Primary Language: English
Secondary Languages: French, Spanish
Fixed XP:
[Attributes]
WIL (+20 XP)
EDG (+20 XP)
[Traits]
Equipped (–20 XP)
Reputation (-10 XP)
Wealth (-10 XP)
Lothian League:
[Attributes]
INT (+100 XP)
WIL (+150 XP)
CHA (–50 XP)
EDG (+50 XP)
[Traits]
Compulsion/Stubborn (–100 XP)
Compulsion/Hatred of Marian Hegemony (-100 XP)
Compulsion/Distrust of Inner Sphere (-50 XP)
[Skills]
Perception (+15 XP)
Small Arms (+15 XP)
Survival/Arctic (+20)