DALRIADA, the name of two ancient Gaelic kingdoms, one in Ireland and the other in Scotland. Irish Dalriada was the dis trict which now forms the northern part of county Antrim, and from which about A.D. 50o some emigrants crossed over to Scot land, and founded in Argyllshire the Scottish kingdom of Dalriada. For a time Scottish Dalriada appears to have been dependent upon Irish Dalriada, but about 575 King Aidan secured its indepen dence. One of Aidan's successors, Kenneth, became king of the Picts about 843, and gradually the name Dalriada both in Ireland and Scotland fell into disuse.
See W. F. Skene, Celtic Scotland (Edinburgh, 1876-8o) .