stevenrogered:

By royal decree, I, Escalus, Royal Prince and sole sovereign of the city of Verona, do herefore order the marriage of Rosaline Capulet and Benvolio Montague, to cement your families as allies, not rivals. If Montague and Capulet cannot coexist as two, they must become one.

Rosaline Capulet and Benvolio Montague on 1×03 – All The World’s A Stage

In an attempt to convince the citizens of Verona that Benvolio and Rosaline are madly in love, Prince Escalus suggests a public betrothal ceremony. Meanwhile, Livia bonds with Count Paris, and a larger conspiracy to keep the Montagues and Capulets feuding threatens Escalus’ plans for peace.