'Domangart mac Ferguso' was king of
Dál Riata in the early 6th century, following the death of his father,
Fergus Mór.
He had at least two sons:
Comgall and
Gabrán, both of whom became kings in succession. The ''
Tripartite Life of St. Patrick'' states that he was present at the death of the saint, circa
493. Domangart died around 507 and was succeeded by Comgall.