The Viscount Tewkesbury, Marquess of Basilwether is a character in the 2020 film Enola Holmes, portrayed by Louis Partridge. He is based on the titular character of the first novel in The Enola Holmes Mysteries by Nancy Springer, The Case of the Missing Marquess; however, the character in the film has some significant differences from his novel counterpart. Tewkesbury is a wealthy, progressive young peer who has recently inherited his father's land and titles. However, he runs away from home, where he meets the likewise-fugitive Enola and soon discovers that he is in great danger from an unknown individual.
Tewkesbury is the son and heir to the late Marquess of Basilwether, who was killed not long past in an apparent robbery. Tewkesbury is set to inherit his father's estate, title and seat in the House of Lords; however, he resists his family's desire for him to join the military. When he is nearly killed by a falling branch in the woods, he undergoes a personal crisis which prompts him to run away from home. He takes a carriage to the station, where he bribes a porter to hide him in a carpet bag and leave him on the train. His family notices his absence and track him to the train station, but are unable to have the train stopped and searched. Nevertheless, a man named Linthorn, apparently in the family's employ, manages to board the train before it departs.
On the train, Tewkesbury emerges from hiding place to find his compartment occupied by Enola Holmes, who is also running away from her family. Enola wants nothing to do with him, concerned that he could get her into trouble. However, she is soon dragged into the situation when Linthorn attacks the marquess and attempts to kill him. Enola stuns Linthorn with his own cane and then helps Tewkesbury escape him by jumping off the train. They head off for London together, but while Tewkesbury wants to stay with Enola, she insists they go their separate ways.
While looking for her mother in Limehouse, Enola is again attacked by Linthorn, who tries to get the marquess' whereabouts from her. This convinces her to accept some responsibility for Tewkesbury's safety. She travels in disguise to his home, Basilwether Hall, to gather clues, but the family refuses to meet with her. In the woods, she finds the branch that nearly killed Tewkesbury and realizes it had been cut intentionally. She also discovers his secret treehouse, and realizes he had set false clues to misdirect his family. However, she is discovered by Tewkesbury's grandmother, the Dowager. They have a short conversation, where the Dowager says Tewkesbury possesses his father's obsession with the future. She then advises Enola to leave before she gets caught, but asks her to send her love to her grandson.
In London, Enola uses clues from the treehouse to find Tewkesbury selling flowers in Covent Garden Market. She takes him back to her lodging, and tries to convince him that his family is trying to kill him, as they likely killed his father. Though unsure of the motive, she believes it is likely for his inheritance. Tewkesbury is skeptical, and Enola tells him about the cut branch she found. However, they are interrupted by Inspector Lestrade, who has come searching for Enola. They manage to escape upstairs, where Enola holds the door closed and convinces Tewkesbury to run, as he will be in greater danger if he is caught.
Having been captured by Lestrade, Enola is sent to boarding school. Tewkesbury comes to rescue her by again hiding himself in a large basket, which he passes off as a gift from Enola's brother Mycroft. Tewkesbury offers to smuggle Enola out in the basket, which she considers a terrible idea as the headmistress, Miss Harrison, will surely see through it. However, with no other options Enola agrees to the plan. Indeed, they are caught on the way down the stairs, but Tewkesbury convinces Miss Harrison that the basket is a gift for her from Mycroft, much to her delight. Miss Harrison has the basket carried to her office, giving Enola the chance to escape. She and Tewkesbury steal Miss Harrison's motorcar and drive away.
On the road, Enola explains that she suspects Tewkesbury's uncle is behind the attempts on his life. She convinces him to return to Basilwether Hall to lure the culprit out of hiding. There, they are attacked again by Linthorn with a shotgun, but manage to disarm and accidentally kill him. To their surprise, Tewkesbury's grandmother appears and grabs the discarded gun. She reveals that Tewkesbury's mother and uncle have gone to London to search for him, and that she was actually behind the assassination attempts all along. The Dowager apologetically explains that she cannot allow Tewkesbury to take his seat in Parliament and break the stalemate on the pending Reform Act, which would massively expand the vote. She then shoots him in the chest and attempts to kill Enola as well, only failing due to a lack of ammunition. However, to her shock Tewkesbury survives the blast thanks to a breastplate concealed he under his clothes. With his grandmother defeated, Tewkesbury tells her that her time is over. They then reveal the plot to the police, though his grandmother's fate is not revealed.
Now ready to take his seat in the House of Lords, Tewkesbury returns to London with his mother and uncle. As he prepares for the upcoming vote in Parliament, he sees Enola. He tries to convince her to stay with him, but she refuses, though she promises that they're not saying goodbye forever. Tewkesbury's vote is decisive in breaking the deadlock, passing the Reform Act by a single vote.
In the novel
In The Case of the Missing Marquess, Tewksbury (spelled without an "e") is significantly younger at only twelve years old. Over the course of the story, Enola takes to calling him "Tewky". He is the son and heir of the Duke and Duchess of Basilwether. Tewksbury runs away due to unhappiness with his home life and overbearing mother. He and Enola are later kidnapped by a pair of thugs led by a man named Cutter, who plan to ransom him to his family. Cutter is simultaneously posing as a psychic named Madame Laelia Sibyl de Papaver, employed by the Duchess to find her son. Enola and Tewky manage to escape and turn him over to the police, leading to Cutter's arrest.
- Tewksbury's title in the peerage and form of address is somewhat confused between the novel and film. To begin with, as viscount is a lower title than marquess it should be listed second. Furthermore, in the novel his title seems to be a courtesy title without legal standing, as his father is still living and holds the higher substantive title of Duke of Basilwether. However, in the film it seems to be his substantive title, as his father is dead and his mother is called Marchioness of Basilwether by her footman. He would therefore correctly be referred to as Lord Basilwether, rather than Lord Tewkesbury; the same is true for his mother, who is usually referred to as Lady Tewkesbury instead of the correct Lady Basilwether.