In Downpatrick, Ireland, the natal day Not his birthday but the day he died and was "born again" into Heaven of St. Patrick, Bishop and Confessor, who first preached the gospel of Christ in that island and was famous for his great miracles and virtues – Roman Martyrology for March 17
Tradition has it that St. Patrick was responsible for the conversion of the Irish to Christianity. Medieval portraits showed him without a beard and sometimes dressed as a religious (Moss). In this period he has no attributes and portraits vary greatly.
After the Middle Ages he was most often portrayed as at right: a bearded bishop with a mitre, crozier, and chasuble. The chasuble is most often green but sometimes red. Many images dispense with attributes and rely on a label or the green color of the chasuble. The two attributes that do feature in other images are a shamrock and one or more snakes at his feet.
THE SNAKES AND THE SHAMROCK
Snakes allude to the belief, retold in the Golden Legend, that he drove the snakes out of Ireland. The shamrock, according to Rachel Moss, was strongly associated with St. Patrick by the late 17th century. People wore shamrocks on March 17, and halfpennies minted in Dublin showed him holding one in his right hand. However, "there was no historical basis for the association of the Saint with the plant" (Moss).
Today's Catholics are told that St. Patrick used the shamrock to explain the Trinity. I have not been able to find any pre-modern text that makes this claim, but it is true that some of the earliest biographies report an emphasis on Nicene theology. One text has him tell the daughters of an Irish king that God the Father "hath a Son coeternal with himself and like unto Him. But the Son is not younger than the Father, nor is the Father older than the Son" (Stokes, 103). And he opens "The Deer's Cry" with the words "I bind myself today to a strong virtue, an invocation of the Trinity. I believe in a Threeness with confession of an Oneness in the Creator of the universe" (ibid., 49).
The most common narrative image is of St. Patrick preaching to the Irish people or to their kings (example). One may also find images of "St. Patrick's Purgatory" (example). In the Golden Legend, Patrick opened a pit in the earth "in to which whomsoever entered therein he should never have other penance ne [nor] feel none other pain, and there was showed to him that many should enter which should never return ne come again. And they that should return should abide but from one morn to another, and no more, and many entered that came not again." The Latin (but not Caxton's translation) then tells of a man who withstood the pains and survived the experience because he kept saying, "Jesus Christ, Son of the living God, have mercy on me, a sinner" (Ryan, I, 194. Also see Acta Sanctorum, March vol. 2, 585-89).
Prepared in 2014 by Richard Stracke, Emeritus Professor of English, Augusta University