Ahhh, our arch enemies / nemesis / sister school 
I went to Mount St Mary’s (Mount St Mary's College - Added to Historic Buildings in East Midlands) and Barlborough Hall prep (Barlborough Hall - Added to Historic Buildings in East Midlands).
One of my old teachers went on to become a deputy head at Stoneyhurst - John Hopkins if you were around in his tenure. Almost certainly retired now but was at MSM until the 1990’s. Nice to see the old building(s) from a different perspective.