Final answer:
Paris visits Lord Capulet in Shakespeare's 'Romeo and Juliet' to seek his permission to marry Juliet, setting up the conflict in the story since Juliet loves Romeo.
Step-by-step explanation:
The question "Why has Paris come to visit Capulet?" pertains to the play Romeo and Juliet by William Shakespeare. Paris visits Lord Capulet because he is interested in marrying Capulet's daughter, Juliet. Paris is a wealthy suitor and Capulet considers him a good match for Juliet, however, this visit sets the stage for the ensuing tragic events as Juliet is already in love with Romeo, a member of the rival Montague family.