St. Patrick, of course. We prefer to spell it Padraic, just so you know. I also understand he had something to do with Ireland.
[I know there are those who will tell you that he was English, but the border that existed in the area from which he was kidnapped was indistinct in Padraic's day and, let's face it, given his intelligence, fortitude, and canniness, he really seems much more Scots.]
Almighty God, in your providence you chose your servant Patrick to be the apostle of the Irish people, to bring those who were wandering in darkness and error to the true light and knowledge of you: Grant us so to walk in that light that we may come at last to the light of everlasting life; through Jesus Christ our Lord, who lives and reigns with you and the Holy Spirit, one God, for ever and ever.
Outside of St Patrick's Cathedral in my fire department uniform during the St. Patrick's Day parade with one of the many people from Glasgow who wanted to get their picture taken with a Yank wearing a Glasgow Celtic FC scarf. He may have been slightly inebriated. "C'mon the Hoops!"