Gaetan and Isabella's marriage proved unhappy. For two years, Gaetan traveled throughout Europe visiting relatives in major cities including Vienna. A troubled and depressed man, Gaetan experienced weak health and epilepsy. He had unsuccessfully attempted suicide at least once before shooting himself in the head in his hotel room in Lucerne, Switzerland. Isabella returned to Spain in 1874 and did not remarry. Their brief union produced no issue.[citation needed]
In the course of his short life Cayetano pursued an active military career, including commissions in the Bourbon Neapolitan army and subsequently, in exile, as colonel of a regiment of lancers in Austria. He also saw service with the Papal army, fighting against Garibaldi at the Battle of Mentana, 1867. During the 1868 revolution against Queen Isabella II of Spain, the Prince, aged only 22, commanded the Pavia Hussars regiment and fought at the Battle of Alcolea.[1]
The generations indicate descent from Carlos I, under whom the crowns of Castile and Aragon were united, forming the Kingdom of Spain. Previously, the title Infante had been largely used in the different realms.
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