Complex sentence: The delay was most likely occasioned by a dearth of well-educated clergy; however in 1565 he established the first Counter-Reformation school at Limerick, which opened at Castle Lane in 1565 and was entrusted to the Society of Jesus.
Split into simpler sentences: The delay was most likely occasioned by a dearth of well-educated clergy. However in 1565 he established the first Counter-Reformation school at Limerick, which opened at Castle Lane in 1565 and was entrusted to the Society of Jesus.