King of Dia Riata, Dunchad mac Conaing was co-ruler with the son of Eochaid Buide, Conall Crandomma until 654 when Conaing was killed by Talorcan.
Dunchad mac Conaing (or Dunchad mac Dubain) (died 654) was king of Dal Riata (modern western Scotland). He was joint ruler with Conall Crandomna until he was defeated and killed by Talorcan, king of the Picts, in the battle of Strath Ethairt. The Senchus fer n-Alban makes him a son of Eochaid Buide and thus a member of the Cenel nGabrain. 
