The King's Bishop is the fourth story in the Owen Archer series; it is set in 14th century England during the reign of King Edward III. Owen is a retired archer, once a soldier in the King's army, but a fight with a treacherous French jongleur left Owen blind in one eye. A one-eyed man cannot shoot a bow accurately, so now Owen is living in the city of York, where he works at an apothecary with his insightful wife. As a side job, Owen acts as a fixer for John Thoresby, the King's chancellor. When trouble brews, Thoresby sends Archer to solve the mess (Archer resents being sent away, but in medieval England, there really is no choice but to obey the wishes of the powerful) Thoresby seems to be needing Owen's skills all too often.
The novel begins with a confrontation between Ned Townley (a henchman for the Duke of Lancaster, who is the son of King Edward III), and Daniel, who is mild mannered page for the powerful William Wykeham. Ned is an ex-soldier (he served in the army alongside Owen Archer), and Daniel is merely a timid scholar - but Ned threatens Daniel nevertheless, telling Daniel to stay away from Mary. Ned hopes to marry Mary, and he doesn't want Daniel to interfere with his dreams. In truth, Daniel's relationship with Mary is strictly platonic, but Ned is a jealous man.
The next day, Daniel's body is pulled from the ditch, and naturally everyone believes Ned Townley murdered him. Mary loyally vouches for Ned, saying that he was with her that night, but no one believes her. (Mary is a maid for Alice Perrers, who is the mistress of King Edward III - the adulterous relationship is an open secret, though the court pretends that the King is still faithful to the Queen).
The bishopric of Winchester is an open position, and King Edward III wishes to install his friend, William Wykeham as the new bishop. But the pope has a differing opinion. In order to drum up support for Wykeham's candidacy, King Edward III sends a delegation of friars to the influential Cistercian abbeys at Fountain and Rievaulx in Northern England. If the Cistercian monks support Wykeham, then the King's wishes are almost certain to prevail. In order to get Ned away from London (where everyone is accusing him of Mary's murder), Ned is included as part of the armed escort for the delegation of friars. The band heads north, toward York where Owen Archer and Thoresby live.
Unbeknowst to Ned, his beloved Mary was murdered just after he departed London. When the delegation reaches York, prior to heading to the abbeys, Thoresby assigns Owen to take command of the small force. In addition to the murders back in London, there are other mysteries: why is Friar Don Ambrose so hostile and frightened toward Ned? (Ned doesn't even know yet that Mary has been killed.) Owen's instincts tell him not to trust two of the men assigned to protect the friars, Crofter and Bardolph, they don't look like trustworthy men to Owen, they seem more like brutal thugs.
Then Friar Don Ambrose goes missing, and naturally suspicion falls again on Ned, Owen's old friend from their soldiering days. Owen has a handful of crimes to sort out. Can he prove Ned's innocence? Owen chooses to believe his friend Ned is telling the truth, though Ned's accounts and explanations of his actions seem to be avoiding some crucial details.
In the end, the killers are unmasked, and cause for the murders is brought to light. Thoresby travels to London and gets involved in the intrigue at the court of King Edward III.
Overall, this an okay story. I wonder how much of this is based upon real history. I presume that the King really did have a common woman, Perrers, as his mistress. There are ten more books in this series. I intend to continue reading them, but I also have several other ongoing medieval series I am interested in (Brother Cadfael, Matthew Bartholomew, Hugh Corbett, John Shakespeare, Matthew Shardlake) - so many books, so little time!