Mercurius became Pope John II, making him the first pope to change their name after attaining popehood.
Source
Pope Constantine died.
Pope Innocent III brought together the council for the Fourth Council of the Lateran, which was held at the Lateran Palace in Rome, Italy.
Pope Sergius I consecrated Willibrord as bishop of the Frisians at the Church of Santa Cecilia in Trastevere in Rome, Italy.
Future Pope John Paul II was almost killed by a Nazi truck in Krakow, Poland.
Cardinal Giovanni Battista Montini becomes Pope Paul VI.
