Josef Müller, also known as "Ochsensepp", was a German politician. He was a member of the resistance during World War II and afterwards one of the founders of the Christian Social Union (CSU). He was a devout Catholic and a leading figure in the Catholic resistance to Hitler.

Robert Leiber, S.J. was a close advisor to Pope Pius XII, a Jesuit priest from Germany, and Professor for Church History at the Gregorian University in Rome from 1930 to 1960. Leiber was, according to Pius's biographer Susan Zuccotti, "throughout his entire papacy his private secretary and closest advisor".