Saint Brogan 

Like St. Columbcille, the 6th century Irish Saint Brogan (also written "Bearchan") predicted a leader named Ruadh (Red) who will appear in Ireland n the latter days:

"After the man whose cognomen will be Ruadh, a spirit of fire will come from the north; there will be but one Lord over Ireland. It is he who will bring affliction to the Gauls, by which their savage hordes shall suffer; until he will sail across the azure sea to Rome he will be a great king renowned for feats of arms."

Saint Ultan 

The Irish Saint Ultan of Ardbraccan (died 657) also predicted Ruadh:

"Then the Ruadh will proceed to the south, he will offer much opposition to the English; my confidence is in the Redhead for valor --- he will free Eire from her difficulties. In a month after that hard-fought battle, another king will come from the north; I assure, without the least deception, that three battles will be broken in one day. The battle shall continue during a whole week; after that, the aliens shall be dispersed. Wednesday will be the day of the battle, by which the aliens shall be driven from their strongholds; none of them shall remain after that but what birds could not carry off in their claws!"