Complex sentence: Florentino married a politician named Elias de los Reyes at the age of 14, and they had five children, including Isabelo de los Reyes, who would later become a Filipino writer, activist and senator.
Split into simpler sentences: Florentino married a politician named Elias de los Reyes at the age of 14. Their son Isabelo de los Reyes later became a Filipino writer, activist and senator.