sentences:  This would mean the college had around 2000 - 2400 students at any given time.Whether the college was ever this large has not been confirmed by archeological excavation, but many well-known Celtic saints are said to have attended the college, including St. David of Wales, Gildas the historian, Samson of Dol, St. Paul Aurelian, and Paulinus.The college was a primary learning center of Sub-Roman Britain (now Wales), but was unfortunately situated in a location on the Glamorgan Plain that exposed it to hostile incursions from Irish pirates, and to Viking raids.