Isabel's marriage took place amidst great pomp on 13 May 1868. Upon his marriage, Isabella II bestowed on Gaetan the title of infante. After the wedding, the young couple embarked a long honeymoon that took them first to visit her new family-in-law residing at the Palazzo Farnese in Rome. Two months later, the young couple went to the Austrian court, where Gaetano's maternal relatives lived. On their way back to Spain, while visiting Emperor Napoleon III and Empress Eugénie at Fontainebleau, they received the news of the Glorious Revolution that cost Isabella II her throne. Gaetan rushed to enter Spain and fought in defense of the monarchy in the Battle of Alcolea, a defeat that marked the end of the reign of Isabella II, who crossed the border into France with the royal family. In exile, the deposed queen settled in Paris, where Infanta Isabel was waiting for her mother. Initially, Infanta Isabel and Gaetan also lived in Paris in a house that belonged to Gaetan's uncle Prince Louis, Count of Aquila.