From publisher blurb:
Fearsome Foes is a series of short PDFs that each feature a single villain or villainous group to challenge the player characters in your Pathfinder Roleplaying Game or OGL campaigns. The villains presented are suitable to be used as either one-shot or recurring foes. In addition to the main villains each volume will contain enough supporting material that they should be ready to include in your game will little or no extra preparation.
In this volume:
Background on Sir Barthold Highchurch, the Smiling Bastard and his henchman Black Winston.
Sir Barthold Highchurch CR 9
Black Winston CR 7
Background on The Knights of the Wall
Order of the Wall Cavalier Order
Knight of the Wall NPC CR 1
Adventure Hooks
Dastardly Encounters