THE MS GAELIC 1467, STATES, FINGUINE[MACKINNON] AS THE SON OF CORMAC SON OF ABERTACH SON OF MUREDACH SON OF FERCHAR OG SON OF KING MACBETH[ THORFINN THE MIGHTY]. ABERTACH HELD BY THE SWORD, MULL, TIREE & IONA[HY]. ALSO, CORMAC FILLI[SON OF] MACBETH, WAS A WITNESS TO MANY CHARTERS IN THE EARLY...