Short Answer 
The prologue of *Romeo and Juliet* introduces the setting of Verona and the main characters, Romeo and Juliet, who come from feuding families, the Montagues and Capulets. It establishes the central conflict of their forbidden love and foreshadows the tragedy that will arise from their struggle against their families’ animosity.
Step 1: Introduction of Setting and Characters
The prologue of Shakespeare’s *Romeo and Juliet* establishes the setting of Verona, a city troubled by conflict. It introduces the main characters, specifically the two young lovers, Romeo and Juliet, who belong to opposing families. This backdrop creates a sense of place and highlights the central figures in the story.
Step 2: Presentation of the Central Conflict
The prologue reveals the existence of an ancient grudge between two noble families, the Montagues and the Capulets, which is crucial to the plot. This ongoing feud sets the stage for the challenges that Romeo and Juliet will face in their pursuit of love. The audience is made aware that their romance is not just a personal affair but also laden with the weight of familial animosity.
Step 3: Foreshadowing Tragedy
Importantly, the prologue foreshadows the tragic events that will unfold due to the lovers’ struggle against their families’ feud. It hints at the doomed nature of their romance, suggesting that their lives are intertwined with fate and conflict. By setting this tone, the prologue prepares the audience for the ultimate tragedy that results from their desperate love.