Cretan Revolt
With the reestablishment of the Roman Catholic Archdiocese of Athens, Pius IX appointed him to it. Marangos helped to support those affected by the earthquakes of Cephalonia and Aigio, as well as helped those in need after the unfortunate Cretan Revolt against the Turks. For this reason he was honored by the Greek State to the distinction of Commander of the Royal Order of the Redeemer.