Update 11/4/16: My nephew's Halloween Costume was none other than St. Charles Borromeo this year!
Also here is the exact quote from Karol Wojtyla about the origin of his name:
- My joy is all the: greater because I am meeting you in this famous hospital called after Saint Charles Borromeo, whose name was given to me by my parents at Baptism.
____________________________________________________________________________He goes on to say of Borromeo: ‘model of the pastor known for his exemplarity in charity, doctrine, apostolic zeal and above all prayer.’ The Pope recalled the bishop's words, ‘We conquer souls on our knees.’
Lastly he remembers, “venerable predecessor John Paul II, who with devotion bore St. Charles' name."
Blessed John Paul II, the former Karol Wojtyla, was indeed named for Charles Borromeo and during his pontificate, November 4th was a national holiday for Vatican City State.