Cornelius also known as Conchobar mac Meic Con Caille (Modern Irish: Cornelius McConchailleach) was Archbishop of Armagh. An Irishman by birth, he entered the Augustinians at Armagh in 1140, before being made abbot in 1151. Later in 1174, Cornelius was consecrated bishop. Cornelius died on his return from a pilgrimage from Rome in Chambéry, Savoy, France, in 1176.