There are a few points which a lot of people agree on and some on which they differ regarding Patrick's origins.
From the transcription of Patrick's two works The "Confessio" and the "Epistola ad Coroticum" it pretty much depends on the translation
Some say Maewyn Succat (later to become St Patrick) was born at Kilpatrick, near Dumbarton, in Scotland, in the year 387 and died at Saul, Downpatrick, Ireland, 17 March, 493.
It's generally accepted that he was captured when he 16 on the 'West coast of Briton' (though not specific on location but some agree that it was nearer to the shorter sea crossing between the British Isles and Ulster (which would then support his birth being in Scotland) and there after he was sold into slavery to a Druid Cheif in Ireland, and six years later he escaped to Gaul where he later became a monk. Around 432 he returned to Ireland as a missionary and succeeded in converting many of the island's tribes to Christianity.
There are some that say he was born on the West Coast of Wales and some that say he was born on the west Coast of England.
Where ever he was born, he is Ireland's Own now.

Jude