Complex sentence: During his time in Rome, Polo worked in a Spanish Law Institute with the Spanish Professor of Roman Law Alvaro D'Ors and attempted to reinterpret Natural Law in the light of his own method.
Split into simpler sentences: During his time in Rome, Polo worked in a Spanish Law Institute with the Spanish Professor of Roman Law Alvaro D'Ors. Polo tried to reinterpret Natural Law in the light of his own method.