Many of the accounts in Macbeth are historically accurate; however, some parts of the play were adapted and modified to fit the current times in which Shakespeare lived. It is noted, “the interest of Macbeth is not a historical interest” (Boyce, “Banquo”). Shakespeare deviated from the chronicles in different aspects in order to please the king during his time. Macbeth was written solely to gratify King James I of England. Shakespeare pays tribute to King James in many different ways.
Teenink.com explains, “Shakespeare drew the plot for Macbeth from historical sources--particularly Raphael Holinshed’s Chronicles of England, Scotland, and Ireland. Even though Shakespeare used Holinshed’s Chronicles as a chief foundation for Macbeth, he selectively changed parts of history for his boss/monarch, King James I. While Shakespeare used Holinshed's work extensively in Macbeth, it is clear that he changed different aspects of the historical writing. One of which was Banquo, the ancestor of King James I. William Shakespeare had to alter Banquo’s character immensely to create a respectable reputation for both King James I and his ancestors. According to www.shakespeare-online.com, “In both [Macbeth and the Chronicles], Banquo initially is a noble soldier fighting along side Macbeth in King Duncan’s army”.
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April 20th –30th, 1999 Jones, Eldred. "Othello- An Interpretation" Critical Essays on Shakespeare’s Othello. Ed. Anthony G. Barthelemy Pub. Macmillan New York, NY 1994.
“Sonnet 138.” Shakespeare’s Sonnets. Eds. Barbara A. Mowat and Paul Werstine. New York: Washington Square, 2004. Smith, Gordon Ross, ed.