Ulster, which along with Leinster, Munster and Connacht is one of Ireland's four ancient provinces, is the original homeland of the Coyles, whose name derives from that of a celebrated sixth century saint.
• In contemporary times and in the creative world of the written word, Harold Coyle is the best-selling American author of historical and war novels that include Sword Point, Trial by Fire and Cat and Mouse.
• In the music world, Nadine Coyle, born in 1985, is the Northern Irish singer with the top-selling all-girl band Girls Aloud whose No.1 hits include Sound of the Underground.
