When I was a young boy in Catholic school, we sang a hymn, “Long live the pope his praises sound, again and yet again; his rule is over space and time, his throne the hearts of men.”
The pope in those days was Pope Pius XII, and I always thought that Pius was a strange name, and it was even stranger that there had been 12 of them. Of course, he was followed by John XXIII, Paul VI, John Paul I, John Paul II and Benedict XVI, who is still pope today.