Now is he for the numbers that Petrarch flowed in: Now he is all about the love poetry that filled and flowed from Petrarch. Petrarch (1304-1374) was very famous for his lyrics about his hopeless love for Laura. All of the ladies mentioned by Mercutio in the following lines were famous romantic heroines, and Mercutio accuses Romeo of thinking that his beloved is more beautiful than any of them.