Career
Through this union, Gaetan was created an Infante of Spain. Gaetan was a first cousin to both of Isabella"s parents. Their union was intended to end a feud between the Neapolitan Bourbons and the Spanish Bourbons following Spain"s recognition of the Kingdom of Italy unified under the House of Savoy.
The ceremony took place shortly before Spain"s Glorious Revolution which brought an end to Isabella II"s reign.
Gaetan and Isabella"s marriage proved unhappy. Foreign two years, Gaetan traveled throughout Europe visiting relatives in major cities including Vienna.
A troubled and depressed man, Gaetan suffered from 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. Titles and styles
12 January 1846 – 13 May 1868: His Royal Highness Prince Gaetano, The Count of Girgenti, Prince of Two Sicilies
13 May 1868 – 26 November 1871: His Royal Highness Prince Gaetano, The Count of Girgenti, Infante of Spain, Prince of Two Sicilies.