Cardinals created by Benedict XV
Pope Benedict XV (r. 1914–1922) created 32 cardinals in five consistories over less than seven and a half years, with a three year gap during the worst fighting of the First World War. Nineteen of the 32 were Italian, twelve came from other European countries, and the lone non-European was Dennis Dougherty from the United States.
Source: Wikipedia — Cardinals created by Benedict XV (CC BY-SA 4.0)