Popular romance authors frequently allude to William Shakespeare's works within their novels. In my dissertation, I survey and analyze the various ways current authors of historical romance novels appropriate Shakespeare and how those appropriations reinterpret his works. I argue in part that the inclusion of Shakespearean allusions has become part of the codes of romance novels, with various types of allusions serving different purposes. Performances of Shakespeare's plays tend to serve as a backdrop for courtship or as a foil to the plot of the novel. When romance authors rewrite Shakespeare's plays to suit the romance novel audience, they often refocus on the heroine and give her more agency. Romance authors also rewrite Shakespeare's tragedies as romance in ways that draw on reader familiarity with the plays. These revisions tend to reduce the plays to key moments or themes and focus on female characters in Shakespeare's works. When romance novel heroes or heroines quote Shakespeare, his words serve as a signal to the reader of elements of their character, such as their intelligence or emotional availability. When authors allude to Shakespeare's works in titles, names, or opening quotations, they openly signal their appropriation of the Bard in ways that distinguish their novels from others. In these more minor appropriations, Shakespearean allusions can function as marketing tools.