Why don't the Irish give us Italians/Romans any credit at all, invite us to participate in their Parade, or at least raise a brew or two for "their Italian Saviour" . Otherwise I may get irritated and let them know that Patrick rose to be a Bishop, but was NEVER canonized as a Saint.

St Patrick wasn't born in Ireland, but Wales, was captured and spent his 16th  through 22 yrs as a SLAVE in Ireland, before he escaped and briefly returned to Britain before he decided to enter a monastery at Tours, France, where his mother had "connections" and where he was made a priest and then a bishop over the next  24 years in the south of France. 

Pope St. Celestine I, entrusted Patrick with the mission of gathering the Irish race into the fold of Christ. It was in the summer months of the year 433,(when Patrick was 46)  that Patrick landed at the mouth of the Vantry River close by Wicklow Head. There  he performed a number of "Miracles", and proceeded to  convert the Pagan Celts to Christian Irish.

SAINT PATRICK 
St Patrick, Apostle of Ireland, born in the year 387; died at Saul, Downpatrick, Ireland, 17 March, 493. Some sources say 460 or 461. -- Ed. Knowledge of St. Patrick's life is a combination of his only two authentic letters the 'Confessio' and the myths and legends that have been passed down through time. Interestingly enough, Patrick was never canonized by the Pope. Nevertheless, various Christian churches declare that he is a Saint. 

St Patrick's parents were Calphurnius and Conchessa Succat . Calphurnius belonged to a Roman family of high rank and was appointed to the  office of Decurio  in Britain,( in Wales). Conchessa was a near relative of the great patron of Gaul, St. Martin of Tours, and therefore well connected.  Their son, later called Patrick, was named 'Maewyn Succat'. 

Decurio was an official title in Ancient Rome. A member of the senatorial order in the cities and towns under the administration of Rome, which in this case is best thought to be in Wales. It is unlikely that St Patrick was born in Scotland as claimed , by even respected sources, since the Romans never entered Scotland, and even built Hadrians wall to keep the barbaric Scots out of Britain. 
Keep in mind that the Roman MILITARY was called back to Rome in 410 AD,  because of Barbarian Threats to Rome, But the Roman Administration was left in place, However Nordic Tribes started raiding Britain, and the Brits appealed to Rome to Militarily Protect them, but Rome was unable. 

Please note that, in his sixteenth year,  (which would be 403 AD - 7 years before the Roman Military left Britain)) Patrick was carried off into captivity by Irish marauders and was sold as a slave to a chieftain named Milchu in Dalriada, a territory of the present county of Antrim in Ireland, where for six years he tended his master's flocks  near the modern town of Ballymena. He relates in his "Confessio" that during his captivity while tending the flocks, it became a remote preparation for his future apostolate. He acquired a perfect knowledge of the Celtic tongue, and, as his master Milchu was a druidical high priest, he became familiar with all the details of Druidism from whose bondage he was destined to liberate the Irish race. 

Admonished by an angel, he escaped back to Britain, but now his heart was set on devoting himself to the service of God in the sacred ministry. He went to St. Martin's monastery at Tours, and again at the island sanctuary of Lérins renown for learning and piety; No sooner had St. Germain entered on his great mission at Auxerre than Patrick put himself under his guidance, and it was at that great bishop's hands that Ireland's future apostle was a few years later promoted to the priesthood. 

When St. Germain was commissioned by the Holy See to proceeded to Britain to combat the erroneous teachings of Pelagius, he chose Patrick to be one of his missionary companions and thus it was his privilege to be associated with the representative of Rome in the triumphs that ensued over heresy and Paganism. However, Patrick's thoughts turned towards Ireland. 

Under the guidance of St. Germain, bishop of Auxerre in France, he was ordained a priest and helped St. Germain combat heresy and Paganism.He became bishop in 432 and Pope Celestine conferred him with the name "Patercius" or "Patritius" hence "Patrick" 

Pope St. Celestine I, entrusted Patrick with the mission of gathering the Irish race into the one fold of Christ. It was probably in the summer months of the year 433,(when Patrick was 46)  that Patrick and his companions landed at the mouth of the Vantry River close by Wicklow Head. There  he performed a number of "Miracles" 

It was on 26 March, Easter Sunday, in 433, that  St Patrick, at Tara, challenged the Druids/Paganism to extinguish the critically important symbolic Paschal Fire, which despite all their incantations,they were unable to do, and were vanquished.

Legend credits Patrick with banishing snakes from Ireland, though evidence suggests that post-glacial Ireland never had snakes. The stories of Saint Patrick and the snakes are likely a metaphor for his bringing Christianity to Ireland and driving out the pagan religions such as the Druids (serpents were a common symbol in many of these religions). 

Another legend concerns the shamrock, the symbol of Ireland. Supposedly, Patrick used the shamrock, a 3-leaved clover, to teach the Irish about the concept of the Trinity, the Christian belief of three divine persons in the one God -- the Father, the Son, and the holy spirit. The shamrock was sacred to the Druids, so his use of it in explaining the trinity was very shrewd on his part. 

http://www.domestic-church.com/CONTENT.DCC/
19980301/SAINTS/STPAT.HTM

and varied sources 
 

The ANNOTICO Reports Can be Viewed (With Archives) on:
[Formerly Italy at St Louis]