Complex sentence: In response to Grotius' "Ordinum Pietas", Professor Lubbertus published "Responsio Ad Pietatem Hugonis Grotii" in 1614, later that year Grotius anonymously published "Bona Fides Sibrandi Lubberti" in response to Lubbertus.
Split into simpler sentences: In response to Grotius' "Ordinum Pietas", Professor Lubbertus published "Responsio Ad Pietatem Hugonis Grotii" in 1614. Later that year Grotius anonymously published "Bona Fides Sibrandi Lubberti" in response to Lubbertus.