It’s amazing a character like Bronn lasted and survived the whole series. You don’t notice him much at first, until he nominates himself to be Tyrion’s champion in the first trial by combat at the Vale.
For which he wins. It was a good fight, and showed the difference between an “honorable knight” vs a skilled mercenary.
For his victory, Bronn became Tyrion’s BFF, up until Tyrion gets arrested for Joffrey’s murder and oh boy that was fun. He wanted to be his champion most likely, until the Mountain was announced to be the Crown’s champion.
But due to his actions during the battle against Stannis and for “refusing” to aid Tyrion, Bronn is elevated to a knight and set up in a marriage with good titles and lands. Or at least, the promise of them.
Until Jaime Lannister comes along and promises him a better castle and wife if he helps him out with a new mission.
And another mission.
And another mission, ending in failure. Bronn does seem to be serious about getting his fookin castle.
To the point where he promises to kill one or both Lannister brothers if he doesn’t get what he wants. I understand that Jaime really did him wrong. Tyrion was mostly blameless on that one.
And at the end of the series, he becomes Lord of the Reach, and owner of Highgarden castle. He’s also Warden of the South and Master of Coin. I do find it a bit funny that he wanted to be on the Small Council. What’s the point of having your own castle if you don’t live in it technically?