Arnaud d'Ossat was a French diplomat, writer and a Cardinal of the Roman Catholic Church, whose personal tact and diplomatic skill steered the perilous course of French diplomacy with the papacy in th

Luigi d'Este was an Italian Catholic cardinal, the second son of the five children of Ercole II d'Este, Duke of Modena and Ferrara, and Renée de Valois, daughter of Louis XII of France.