Can you become a noble?
I believe that actually comes up as part of a quest line. You can certainly dress like one in the mean time and enjoy some nice charisma perks, or put on all that polished armor and have everyone call you a knight.
No, as the game stands right now you do not become an actual noble or get Knighted.
(Not being knighted was a big disappointment for me, because I feel like stolen valor when people call me a Knight)
I don’t know much about culture back then but progressing through the main story seems to give you a Nobles status.(without any spoilers)
Unless they make DLC and knight Henry.
I honestly don’t see how you can be in service to a lord and do all the shit you do in this game while becoming the best swordsman and not get rewarded.
If future DLC or games are planned to follow Henry, I know he will get Knighted and just doesn’t make sense if he doesn’t.