Oct. 11: ST. POPE JOHN XXIII. Biographical sketch and Opening address (2nd Vatican Council). 6 min read Saints October saints and feasts St. Pope John XXIII Oct. 11: ST. POPE JOHN XXIII. Biographical sketch and Opening address (2nd Vatican Council). catholicsstrivingforholiness October 7, 2021 Oct. 11ST. POPE JOHN XXIII Pope John XXIII; born Angelo Giuseppe Roncalli, (25 November 1881 – 3... Read More Read more about Oct. 11: ST. POPE JOHN XXIII. Biographical sketch and Opening address (2nd Vatican Council).