The fact that your character with the highest stats is a fighter with a noble background suggests that he is a very ambitious and driven individual. He is also likely to be very loyal to his family and his people, as he is the legitimate heir to an earldom on his mother's side.
However, the fact that he is also the bastard child of a king means that he is unlikely to ever achieve his full potential. He will always be overshadowed by his legitimate siblings, and he will never be able to take the throne for himself. This may lead him to feel resentful and angry, and he may lash out in destructive ways.
On the other hand, his noble upbringing may have taught him to be disciplined and self-controlled. He may be able to use his ambition and drive to achieve great things, even if he can never be king. He may become a powerful general or a wealthy merchant, or he may even use his position to help others and make the world a better place.
Ultimately, the character's personality and motivations will be up to you to decide. But his high stats and noble background make him a very interesting and complex character with a lot of potential.
Here are some possible character traits and motivations for your character:
- Ambitious: He is determined to achieve great things, even if he can never be king. He may seek power, wealth, or glory.
- Driven: He is always working towards his goals, and he never gives up. He may be obsessed with his work, or he may be driven by a need to prove himself.
- Loyal: He is fiercely loyal to his family and his people. He would do anything to protect them.
- Resentful: He may resent the fact that he is a bastard and that he can never be king. This may lead him to be bitter and angry.
- Disciplined: He was taught to be disciplined and self-controlled from a young age. He is able to keep his emotions in check and think clearly under pressure.
- Noble: He believes in helping others and making the world a better place. He may use his position to help the poor and the oppressed.
How these traits and motivations play out in your character's story will be up to you. But I hope this gives you some ideas to get started.