The Most Ancient Lives of Saint Patrick/The Life and Acts of St. Patrick/Chapter 76
Of the Quarrel of the Two Brothers.
The blessed Patrick, as the angel of peace, announcing by the blood of Christ that peace which passeth all understanding, journeyed through Ciarraghus. And as he journeyed, he beheld two brothers named Bibradius and Locradius, who, their father having then lately been buried, were dividing the inheritance; and they at first disputed with their tongues, and at length they attacked each other very fiercely. And when each brandished the sword unto the death of the other, the saint feared exceedingly, lest even in his sight the crime of fratricide should happen. Therefore unto the pity of these unpitying men did he address his heart, unto prayer his mouth, unto blessing his hand; and making their arms immovable as wood or as stone, he stayed them in the air. And they, beholding themselves thus miraculously prevented, ceased from the fury of their conceived sin, and, at the bidding of the saint telling good tidings of peace and preaching salvation, returned unto the mutual kindness of brotherly love. Then he, the brothers being appeased, and his blessing being given unto them, restored the power of their arms; and they offered him for the building of a church the field wherein was worked this miracle.