Complex sentence: When Thomas De la Warre obtained a licence to refound the church as a collegiate parish church, a college of priests was built of red Collyhurst sandstone on the site of his manor house incorporating a large hall, warden's lodgings and rooms for the priests.
Split into simpler sentences: When Thomas De la Warre obtained a licence to refound the church as a collegiate parish church, a college of priests was built of red Collyhurst sandstone on the site of his manor house. The college had a large hall, warden's lodgings and rooms for the priests.