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In page Pope Benedict XV:

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Benedict XV elevated 31 Europeans into the College of Cardinals with Dennis Joseph Dougherty as the single non-European cardinal appointed. In the 1916 consistory, no German or Austro-Hungarian cardinals were able to attend due to the intensity of the war. In that consistory, by naming Adolf Bertram as a cardinal "in pectore", Benedict XV hoped not to provoke any negativity in his selection from the Allies, particularly the Italians. Bertram was not formally invested in the Sacred College until December 1919, after the war had concluded.[citation needed]