As if he was waiting in the wings this entire time, it was this moment where, instead of killing Jaime or Tyrion, he made a deal with his longtime friends. If Bronn was to side with them, instead of Cersei, and survive the war, Tyrion promised him a title that was valued even more to him than money: Lord of Highgarden. It was enough to stave off Bronn from killing the two Lannister brothers, and, just like that, he disappeared back into the shadows -- until Sunday's finale.
After King's Landing fell, and House Lannister with it, an impromptu vote was made naming Bran Stark as the new King of the North -- with Sansa taking the throne beside her brother. This new governing body included Tyrion, who somehow escaped the grips of certain death yet again, as Bran's Hand. As the episode concluded, viewers were treated to the first official meeting of this new leadership. And sitting there at the table was none other than Ser Bronn of the Blackwater, now Lord of Highgarden, who as we quickly found out, took on another important title as well: Master of Coin.
The Master of Coin role was previously held by Petyr "Littlefinger" Baelish, but something tells us Bronn won't be doing as much backstabbing and conniving as his predecessor. His first official task? To get the brothels back up and running. It's a dirty job, but somebody's gotta do it.