Your character's Trade stat represents their sway with Merchants and their ability to manipulate trade routes, supply lines, trade caravans and the black market.
Sworn Swords can specialise in a specific Action associated with a Stat. There are nine Actions in the game, each main Stat having 3 specialized Actions.
While main Stats are directly shown in the top left corner of your game screen, specializations (also known as sub stats) only appear when you put your mouse cursor over one of the main Stats. Unlike main Stats, which are represented by actual values, Sub Stats are percentages. Based on the Action taken by your Sworn Sword, Sub Stats boost your main Stat by a certain percent.
Primary source of your Sub Stats are Talents. Each of them has their own Talent tree with several skills to choose from. Aside from normal Talents, each Fealty is also associated with a certain Specialization, and will offer you an extra boost to their chosen sub stat in form of Talents. Building upgrades are mostly related to main Stats, but some of them will also give certain specialization bonuses.
Building Bonuses to Stats
Building Upgrades are your primary source of Stats in the game. They apply directly to your character's Stats, which are also referred to as "Keep Stats". That is because they represent the strength of your Keep (the Building where you house all of your Sworn Swords).
These Stats add to your Character's Stats, and will combine with the Stats of all of your Sworn Swords to determine their overall strength for attack and defense.
The following table shows the maximum bonus your Character will receive to their Stats, should you upgrade all of the buildings in your Holding, where: