Question: The Shakespeare Code was retitled in reference to the 2003 novel written by whom?

Context paragraphs:
The Da Vinci Code WebQuests: The Da Vinci Code" WebQuests (also called The Da Vinci Code" Challenges) are a series of web-based puzzles related to the bestselling 2003 novel "The Da Vinci Code", as well as the 2006 film.  There have been several web quests, none of which directly related to any other.  Probably the most well known is the game run by Google, though it was ultimately met with much more public criticism than the other various games.

The Kaiser's Last Kiss: The Kaiser's Last Kiss is a 2003 novel written by Alan Judd.  The story gives a fictional account of the last few days in the life of exiled Kaiser Wilhelm II after his home at Doorn, Netherlands is taken over by the invading Germans during the opening months of the Second World War.  The book was published by Harper Perennial.  In October 2015, filming started for the adaptation of the book starring Lily James and Jai Courtney.

White Wolf (novel): White Wolf is a 2003 novel by British fantasy writer David Gemmell.  It was the penultimate Drenai Series novel written but falls between "The Legend of Deathwalker" and "Legend" in terms of chronology.

The Da Vinci Code: The Da Vinci Code is a 2003 mystery-detective novel by Dan Brown.  It follows symbologist Robert Langdon and cryptologist Sophie Neveu after a murder in the Louvre Museum in Paris, when they become involved in a battle between the Priory of Sion and Opus Dei over the possibility of Jesus Christ having been a companion to Mary Magdalene.  The title of the novel refers, among other things, to the finding of the first murder victim in the Grand Gallery of the Louvre, naked and posed similar to Leonardo da Vinci's famous drawing, the "Vitruvian Man", with a cryptic message written beside his body and a pentacle drawn on his chest in his own blood.

The Shakespeare Code: "The Shakespeare Code" is the second episode of the third series of the revived British science fiction television series "Doctor Who".  It was broadcast on BBC One on 7 April 2007.  According to the BARB figures this episode was seen by 7.23 million viewers and was the fifth most popular broadcast on British television in that week.  Originally titled "Love's Labour's Won", the episode was re-titled as a reference to "The Da Vinci Code".

Shohola Falls: Shohola Falls is a 2003 novel written by Michael Pearson.  The novel imagines the true story of Thomas Blankenship, the young man that Mark Twain reputedly based the character of Huck Finn upon in his novel Adventures of Huckleberry Finn.  In "Shohola Falls", Mark Twain is set as an important character, the fictional reality aligned to the historical one.

Hawke (novel): Hawke is a 2003 novel written by New York Times best-selling author Ted Bell.  It is published by Atria Books.

The Bride Stripped Bare (novel): The Bride Stripped Bare is a 2003 novel written by the Australian writer Nikki Gemmell, originally published anonymously.  The title is borrowed from the painting "The Bride Stripped Bare by Her Bachelors, Even" (also known as "The Large Glass") by Marcel Duchamp.  It went on the become the best-selling book by an Australian author in 2003.

The Da Vinci Code in the Philippines: "The Da Vinci Code" is a 2006 American mystery-thriller film directed by Ron Howard.  The screenplay was written by Akiva Goldsman and based on Dan Brown's worldwide bestselling 2003 novel, "The Da Vinci Code".  It was produced by Howard with John Calley and Brian Grazer and released by Columbia Pictures in the United States on May 19, 2006.

American Woman (novel): American Woman is a 2003 novel written by the American writer Susan Choi (ISBN  ).  The novel is based on the 1974 kidnapping of Patty Hearst by radicals of the Symbionese Liberation Army.  It was a finalist for the 2004 Pulitzer Prize for Fiction.

Supporting paragraphs: The Shakespeare Code The Da Vinci Code
Answer: Dan Brown