The Kemmis family name started with the name De Camois, which went to De Camoys, then made many changes as the family travelled through Britain. With the main family settlements in Wales
The De Camois's went to Britain with William the Conqueror.
They were cousins to Vasco De Garma (I think that is how you spell it) who circumnavigated the world.
Kemmis is the Irish pronumciation, they went to Ireland to escape their cousin Oliver Cromwell, returning to Wales after he has died.
Kemeys is the Welsh spelling.
This is the line of Edward the Third through his mother Maude.
This is all documented through Bourkes Peerage, Exstinct and dormant,
This is my grandmothers family.