Saint Benignus of Armagh (died 467) was the son of Sesenen, an Irish chieftain in the part of Ireland that is now called as County Meath. He was baptised into the Christian faith by St. Patrick, and became his favourite disciple and his coadjutor in the Diocese of Armagh around AD 450. His gentle disposition suggested the name Benen, which was Latinised as Benignus. Benignus is said to have contributed materials for the Psalter of Cashel, and the Book of Rights. He succeeded St. Patrick's nephew Sechnall as coadjutor and became the first rector of the Cathedral School of Armagh.