When was Saint Patrick born and when did he die?

He was born at Kilpatrick, near Dumbarton, in Scotland, in the year 387;On the other hand he died at Saul, Downpatrick, Ireland, 17 March, 461.
St. Patrick was born c.387 AD, and there is academic dispute over when he died, though the most frequently accepted date today is 493 AD. This implies that the usual given birth date is possibly wrong, as it seems very unlikely at that time in human history that a man would live 106 years.