Complex sentence: His nephew, Jacques Dyel du Parquet, inherited d'Esnambuc's authority over the French settlements in the Caribbean but remained in Martinique and did not concern himself with the other islands.
Split into simpler sentences: His nephew, Jacques Dyel du Parquet, inherited d'Esnambuc's authority over the French settlements in the Caribbean. He remained in Martinique and did not concern himself with the other islands.