Domangart of Dalriada I 
Domangart was born in 0415.1 Domangart's father was Fergus of Dalriada I and his mother was <Unknown>. His paternal grandparents were Erc of Dalriada and Marca. He was an only child. He died at the age of 92 in 0507.1 General Notes
Domangart I of Dalriada, Domangart mac Fergus was king of Dál Riada from about 501 until 507, following the death of his father, Fergus Mor. He may have joint ruled with his uncle, Aeneas.
Domangart married Feldelm Foltchain, daughter of Brion son of Eochaid Mugmedon, a half-brother to the High King of Ireland Niall of the Nine Hostages. He has at least two sons: Comgall and Gabhran, 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.
(Wikipedia)
Details of Domangart's family with Fedelmia Foltchain
1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=arciek&id=I09560&style=TABLE
Further source/citation:
http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=arciek&id=I09561
Further source/citation:
http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=arciek&id=I09561
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