↑ Charles Knight, The English Cyclopaedia: Volume IV, (London: 1867); p. 733 "We have no circumstantial account of this important event, except that Pepin was anointed at Soissons, in March 752, by Boniface, bishop of Mainz, called the Apostle of Germany, before the assembly of the nation."
↑ Claudio Rendina & Paul McCusker, The Popes: Histories and Secrets, (New York: 2002), p. 145.
