Final answer:
The three types of novels that developed in The Romantic Age are Gothic, Historical, and Sentimental, with the Gothic novel featuring dark and supernatural elements.
Step-by-step explanation:
The three types of novels that developed in The Romantic Age are Gothic, Historical, and Sentimental. This era was characterized by a strong emphasis on emotion, imagination, and escapism. The Gothic novel, with its dark, mysterious, and supernatural elements, became popular through works like Horace Walpole's The Castle of Otranto and Mary Shelley's Frankenstein. Historical novels, epitomized by the works of Walter Scott, brought past events and figures into a romantic light. Lastly, Sentimental novels focused on emotional experiences and personal development, often touching upon themes of love and virtue.