Alpín mac Echdach was a supposed king of Dál Riata included in a pedigree created in the 10th century to connect the kings of Alba to legendary Dál Riatan and Irish ancestors. In this pedigree Alpín's father is Eochaid, an Irish name, yet he becomes the father of Cináed i.e. Kenneth MacAlpin. Cináed and Alpín are the names of Pictish kings in the 8th century: the brothers Ciniod and Elphin who ruled from 763 to 780. Alpín's alleged father Eochaid is not mentioned in any contemporary source
