sentences:  Domhnall of Islay could have also been his son.According to the seventeenth-century "Macintosh History", an ancestor of Clann Mhic an Tóisigh named Fearchar married a daughter of Aonghus Óg named """".The fact that Fearchar is supposed to have died in 1274, however, suggests that this source has conflated Aonghus Óg and Aonghus Mór.