MITCHELSTOWN, a post-town of Ireland, in the county of Cork, 132 miles south-west from Dublin. It is built on the site of an ancient town called Brighobban, said to have been founded by a saint of whom a relic was long preserved. Lord Baron Kingston here founded an establishment called the College, where a number of decayed gentlemen and gentlewomen are comfortably provided for. Long. 8. 21. W. Lat. 52. 54. N.