Who says he should not have let the feud continue so long in Romeo and Juliet?

Prince Escalus of Verona says this to the feuding Capulet and Montague families, expressing his frustration at the ongoing feud that has resulted in needless violence and death in the play "Romeo and Juliet." He also blames the families for the tragic outcome and insists that they reconcile after the deaths of Romeo and Juliet.