Midsomer Murders Wiki
Midsomer Murders Wiki

The Sword of Guillaume is the second episode of the thirteenth series of the popular ITV crime drama Midsomer Murders and originally aired 10th February 2010. This episode introduces the character of John Barnaby, Tom's cousin who will step in to take his place when he will retire at the end of the season.


Tom Barnaby joins the Causton Chamber of Commerce trip to Brighton as he is suspicious of dodgy mayor Hicks' plan to buy coastal land on which to build cottages. Also opposed to the plan is Lady Matilda William, who has received threatening letters, as has the local vicar, oily property developer Hugh Dalgleish, and hotelier Jenny Russell. Lady Matilda is descended from Richard of Guillaume, a ruthless contemporary of William the Conqueror, and believes that her son Richard, last of the line and confined to a wheel chair because of a head injury twenty years past, was the victim of jealousy. In Brighton, Dalgleish was murdered with a sword stolen from Guillaume's tomb, and Hicks is eventually arrested for fraud. Having learnt how Richard came by his accident, Barnaby was convinced that Richard and not the property scam is the cause of another victim being claimed by the sword of Guillaume.


DCI Tom Barnaby heads off to Brighton on a bus tour arranged by the Mayor of Causton, Dave Hicks, and the local Chamber of Commerce. Tom has had his eye on Mayor Hicks for some time and his plan for Causton to buy land on which to build summer camps for underprivileged children has a smell about it. Also on the trip are antiques shop owners Lucy and Trent Terry; hotel owner Jenny Russell; developer Hugh Dalgleish; Rev. Giles Shawcross; and Lady Matilda William, along with her disabled adult son, Richard, and his helper, Marcia Macintyre. Lady Matilda traces her ancestry to 1066 and Guillaume of Normandy. She is very much opposed to the land deal Hicks is proposing in part because Brighton is where her brain-damaged son was injured some 20 years before. When the obnoxious Dalgleish is murdered - decapitated while riding through the house of horrors - Tom works with his cousin, DCI John Barnaby, to solve the crime, It will take a second murder, this time in Causton, for he and DS Jones to identify the killer.



Body Count

Prior to the Episode

In the Episode

Supporting Cast

Episode Images



Midsomer Murders Series 13 Episode 2 - The Sword of Guillaume Preview


The following actors and actresses who appeared in this episode have also appeared in the following episodes