Question: Feng was the prototype for the character who was the antagonist in which Shakespeare play?

Context paragraphs:
The Boys from Syracuse: The Boys from Syracuse is a musical with music by Richard Rodgers and lyrics by Lorenz Hart, based on William Shakespeare's play, "The Comedy of Errors", as adapted by librettist George Abbott.  The score includes swing and other contemporary rhythms of the 1930s.  The show was the first musical based on a Shakespeare play.  "The Comedy of Errors" was itself loosely based on a Roman play, "The Menaechmi, or the Twin Brothers", by Plautus.

Khoon Ka Khoon: Khoon Ka Khoon (Blood for Blood) also called Hamlet is the first Hindi/Urdu 1935 sound film adaptation of a Shakespeare play.  Directed by Sohrab Modi under his Stage Film Company banner, it is cited as one of the earliest talkie versions of this play.  Credited as "the man who brought Shakespeare to the Indian screen", it was Modi's debut feature film as a director.  The story and script were by Mehdi Hassan Ahsan from his Urdu adaptation of Shakespeare's "Hamlet".  Starring Sohrab Modi, "Khoon Ka Khoon" was also the debut in films of Naseem Banu who played Ophelia.  The other star cast included Shamshadbai, Ghulam Hussain, Obali Mai, Fazal Karim and Eruch Tarapore.

Love's Labour's Lost (film): Love's Labour's Lost is a 2000 adaptation of the comic play of the same name by William Shakespeare, directed by and starring Kenneth Branagh.  It was the first feature film to be made of this lesser-known comedy.  Branagh's fourth film of a Shakespeare play (he did not direct the 1995 "Othello", although he did play Iago), "Love's Labour's Lost" was a box-office and critical disappointment.

Feng (chieftain): Feng was a legendary Jutish chieftain and the prototype for William Shakespeare's King Claudius.  He appears in "Chronicon Lethrense" and in Saxo Grammaticus' "Gesta Danorum" (book 3).

Thomas J. King Jr.: Professor Thomas J. King Jr. (July 25, 1925 – 1994) was an educator, and an early user of word processing and sequence analysis to compare available early versions of William Shakespeare's plays for identification of variant texts and their analysis.  Dr. King's historical work also researched original prompt copies of Elizabethan Era and Jacobean Era plays contemporary to Shakespeare, along with their marginalia, in order to identify stage directions and infer physical staging of Shakespeare's plays at the Globe and other London venues, as well as at provincial halls and inns where Elizabethan troupes performed on tour.  In his extensive studies, Prof. King created databases of every Shakespeare play and other extant Elizabethan contemporary playhouse documents, by scene and character, to determine number of lines, and therefore the roles that could be doubled with sufficient time between for costume change, thus enabling him to determine the size of a working Elizabethan theater company.

King Claudius: King Claudius is a fictional character and the primary antagonist of William Shakespeare's tragedy "Hamlet".  He is the brother to King Hamlet, second husband to Gertrude and uncle and later stepfather to Hamlet.  He obtained the throne of Denmark by murdering his own brother with poison and then marrying the late king's widow.  He is loosely based on the Jutish chieftain Feng who appears in "Chronicon Lethrense" and in Saxo Grammaticus' "Gesta Danorum".  There had never been an actual Danish King of that name.

The Philadelphia Shakespeare Festival: The Philadelphia Shakespeare Festival is an annual Shakespearean theatre festival in Philadelphia.  Every year, The Festival produces two or three productions of Shakespeare's plays.  Starting out as the Red Heel Theatre in 1989, and changing name and purpose in 1993, The Philadelphia Shakespeare Festival is now the region’s only theatre devoted entirely to Shakespeare’s works.  In 2008/9, they engaged in intensive planning with the board of directors and cultural and community leaders and decided to re-brand and rename the company to better reflect their programming.  The Philadelphia Shakespeare Theatre now has several programs for adults and students including a lecture series featuring world-renowned Shakespeare scholars, Shakespeare School Tour which also tours in schools, and a Classical Acting Academy providing early career actors with intense classical training culminating in a free summer Shakespeare play for the public.

The Taming of the Shrew in performance: "The Taming of the Shrew" in performance has had an uneven history.  Popular in Shakespeare's day, the play fell out of favour during the seventeenth century, when it was replaced on the stage by John Lacy's "Sauny the Scott".  The original Shakespearean text was not performed at all during the eighteenth century, with David Garrick's adaptation "Catharine and Petruchio" dominating the stage.  After over two hundred years without a performance, the play returned to the British stage in 1844, the last Shakespeare play restored to the repertory.  However, it was only in the 1890s that the dominance of "Catharine and Petruchio" began to wain, and productions of "The Shrew" become more regular.  Moving into the twentieth century, the play's popularity increased considerably, and it became one of Shakespeare's most frequently staged plays, with productions taking place all over the world.  This trend has continued into the twenty-first century, with the play as popular now as it was when first written.

Into the Gauntlet: Into the Gauntlet is the tenth book in "The 39 Clues" novel series.  It was written by Margaret Peterson Haddix and released on August 31, 2010.  In the beginning of the book, Amy and Dan are now at the end of their clue hunt, and every misfortune they've had.  Their lead is a poem found in their hotel room.  However, it is then stolen by Isabel Kabra.  It is revealed that William Shakespeare was a powerful Madrigal and the most important clue is on the line against their competitors.  Dan and Amy are supposed to go to the Globe theater to watch a Shakespeare play, "Romeo and Julliet".  While watching the show they see what looks to be ninjas.  The ninjas find a clue at the top of the theater but drop it into the hands of Dan and Amy.  As it turns out the whole Cahill family is at the play looking for the clue.  Backstage of the play the fight over the paper found at the theater.  Mr. McIntyre and Fiske Cahill reveal there is another family out there that makes Isabel Kabra look like Mother Teresa.  The globe on the 39 Clues symbol is, unlike in the first nine books, shattered into pieces.

Ouyang Feng: Ouyang Feng is a fictional character in the wuxia novel "The Legend of the Condor Heroes" and its sequel, "The Return of the Condor Heroes", by Jin Yong.  As the "Western Venom" (西毒) of the Five Greats (五绝), the top five champions of the first martial arts contest on Mount Hua, Ouyang Feng is best known for his signature martial arts technique, the 'Toad Skill' (蛤蟆功), and his expertise in toxicology.  In the first novel, he is depicted as a ruthless villain who resorts to all sorts of unscrupulous means to achieve his goal of becoming the most powerful martial artist in the "jianghu".  He attempts to seize the "Nine Yin Manual", a book detailing powerful martial arts and inner energy techniques, but is tricked into practising skills based on a corrupted version of the manual.  He becomes insane eventually as a consequence, but ironically, his prowess in martial arts also increases tremendously.  In the sequel, Ouyang Feng has become insane, however, he learns to be kind to others, for example, letting Yang Guo call him Father.  Later in the novel, he dies in the midst of laughter and forgotten past feuds alongside his rival, Hong Qigong.  He is buried on Mount Hua beside Hong Qigong by his godson, Yang Guo, who succeeds him as the "Western Eccentric" of the new generation of the Five Greats.

Supporting paragraphs: Feng (chieftain) King Claudius
Answer: Hamlet