Complex sentence: He was Rector of the University of Louvain and established Irish College of Dominicans in Lisbon, and later acted as advisor to the Queen of Portugal and Portuguese envoy to Louis XIV.
Split into simpler sentences: He was Rector of the University of Louvain and established an Irish College of Dominicans in Lisbon. Dominic Ó Dálaigh later acted as advisor to the Queen of Portugal and Portuguese envoy to Louis XIV.