Saint Julian, a native of Dalmatia at that time under Roman rule, young and noble of language and handsome and valiant officer of the Roman militias, arrived in Italy he met a troop of soldiers from Daciano (Proconsul of the City of Sora) near Anagni and greeted them with these words "Peace be with you, brothers". For this greeting he was immediately suspected that he was a Christian, and he was immediately questioned, to see who he was and what religion he belonged to. "I am a Christian and I want to exhort anyone to abandon the Cult of Demons in the guise of Idols, and instead worship the True God and his Son Jesus Christ". The response of the Soldiers was not long in coming, they took Giuliano and chained him to lead him to Sora. The slaps, rudeness, insults, and blows did not keep Julian waiting, for the Romans he was an instigator, he came to disturb the order of the Roman Empire, and therefore deserved something more the Flagellation.

During the journey, Julian begged God to give him strength from the beginning to the end of his fight, God immediately heard him with a voice from heaven saying: "do not fear Julian, I will assist you and give you strength to fight manly and gloriously". Once in Sora the soldiers presented him to the Proconsul Daciano who immediately ordered him to be locked up in a hideous prison called the Three Towers. Here he was left for seven long days without food and drink, at the end of the seventh day, the proconsul ordered him to be brought before his presence, the soldiers thought they would find a corpse in advanced putrefaction, but this did not happen as they found Julian full of life with a joy on the face and with eyes that shone with a celestial light, were the effects of divine providence together with the choir of Angels who had visited and helped the young Dalmatian. The Proconsul thus began to question the young Julian, telling him: you are not ashamed of joining a Crucified Offender and belonging to and following his abominable sect, Giuliano replied: for the Most Holy Religion that you falsely call abominable sect, here I am ready to give the life sooner than venerating your false gods, and true demons, I fear to incur the misfortune of Caesar to be faithful to God and His Son Jesus Christ for His immense charity and for our common health. At these rumors, the Proconsul full of anger commanded that he be first beaten with fists and then placed on the pile, an instrument in the shape of a table, on which the condemned was tied up and then tortured, but Giuliano through the torture he suffered with his pleas to God was able to send a message to those present ... .. see yourselves, brothers, nor do you want to place your hopes in those Idols, which you yourself have made with your hands, adore that God, who created heaven and earth from nothing. Those words were so effective that many of the surrounding people began to shout the name of Giuliano, the soldiers saw this immediately took him to prison. The following morning Giuliano was again questioned by the Proconsul Daciano, but the young Dalmatian remained firm in his footsteps, to this reply Daciano commanded him to be tortured with the Eculeo, an instrument of torture in the shape of a tripod, on which the condemned was forced pulled and twisted. At that moment the hands of the soldiers who had to slaughter the body with the eculeus stopped and everyone was amazed, shouting the Miracle. Now while the Miracle was having its effect on the soldiers, a messenger arrives from afar bringing the news that the Temple of Serapis had collapsed, the statue representing the Temple had shattered and reduced to dust, everyone was amazed, enchanted , and shame covered the Proconsul's face, and the people around the great hymn shouted the name of Julian. The enraged Proconsul pronounced the horrible sentence: Julian Magus of the Christian sect, scorner of the Idols, and rebellious to Caesar be taken to the ruins of the Temple and be beheaded. Brought in front of the ruins of the Temple, while the executioner was preparing to prepare the ax and was preparing to the last body, the Holy Martyr bent his knees to the ground and made this memorable prayer to God: "O God of infinite mercy, I thank you , that you grant me an undeserving outcome of life, I beg you that with this shedding of my blood you wash me so that I can reach the bliss of your kingdom. Please receive My Spirit in peace, and deign for your immense mercy to remember all those who in honor of your Holy Name will commemorate My Martyrdom. "At the end of the prayer, Julian heard a voice from Heaven assuring him that it was was granted and inviting him to the possession of eternal Glory, at that moment the executioner cut off his head and the soul flew away to the promised bliss, he was buried in a place near the Temple of Serapis where today there is a church dedicated to the young man Dalmatian, the martyrdom of Julian took place on 27 January 161 under the Emperor Antoninus.

After 14 centuries, the sacred remains of the Saint were traced by the Bishop of Sora Mons. Girolamo Giovannelli and, with solemn pomp and with great participation of the people, they were transferred to the church of Santo Spirito in Sora on 6 April 1614. 11 April 1622 the citizens of the city of Giugliano sent a Delegation to Sora, which obtained from the Bishop some relics of the Saint, a skull bone and the Rifle bone. these relics were thus carried in solemn procession through the streets of the city of Giugliano and on May 15, 1622, San Giuliano was acclaimed Patron of the city.

The chapel of the Treasury in the church of Santa Sofia was dedicated to the saint in 1631 and subsequently the central painting of the vault of the church of Santa Sofia, depicting the martyrdom of San Giuliano (1755), the work of the painter Nicola Cacciapuoti, a citizen of Giugliano.

Co-patroness of Giugliano

The cult of the Madonna della Pace by the Giuglianesi derives from popular legend: the discovery of a statuette depicting the Virgin, which according to some was transported from Byzantium to Campania, near Cuma. The figurine was found by two farmers who had oxen; the latter as soon as they saw the figurine they knelt. The statue was then transported to Giugliano, where the Sanctuary was later built. In 1739 the Vatican recognized the Madonna della Pace as Giugliano's least principal patroness and ordered her celebrations, which are currently held from the Vigil of Pentecost until the following Sunday.