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One or more of the preceding sentences incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Conclave". Catholic Encyclopedia. New York: Robert Appleton Company. "The new pope endeavoured to obviate for the future such scandalous delay by the law of the conclave, which, almost in spite of the cardinals, he promulgated at the fifth session of the Second Council of Lyons in 1764."
One or more of the preceding sentences incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Pope John XXI (XX)". Catholic Encyclopedia. New York: Robert Appleton Company.