The Norman overlords of Gaeta appointed dukes from various families of local prominence, Normans mostly, until 1140, when the last Gaetan duke died, leaving the city to the king of Sicily, Roger II, to whom he had pledged himself in 1135.
Gaeta normanni isandad nimetasid hertsogeid erinevatest tähtsatest kohalikest perekondadest, peamiselt normannide hulgast, aastani 1140, kui viimane Gaeta hertsog suri, jättes linna Sitsiilia kuningale, Roger II-le, kellele ta oli aastal 1135 truudust vandunud.