There was a Pope John Paul I and II and a Pope John XXIII but never a Pope John Paul XXIII

There was a Pope John XXIII, a Pope John Paul I and a Pope John Paul II but not a Pope John Paul XXIII. None of them had any children. There was also Pope John XXIII. None of them were married or had any children.

No, Pope John XXIII did not travel.

Pope John XXIII is 5' 6".

There is no pope named Pope XXIII. If you are referring to Pope John XXIII, he became pope in 1958.