Here is the Apostolic Succession of Bishop Keenan of Paisley:
Like c95% of living bishops, the Succession can be traced no further than 1541 as it has been impossible to say for certain who was the principal consecrator of the Sicialan prelate, Scipione Rebiba. It is assumed he was consecrated by Cardinal Gian Pietro Carafa, later Pope Paul IV, but this cannot be conclusively proved.
All of the other Scottish bishops, except for Bishop Toal of Motherwell, are in the line through Pope John Paul II which has two non-armigerous Polish prelates who were non-armigers.
