Final answer:
Romance literature is the type of medieval literature that tells highly imaginative stories of the adventures and loves of the knights. It includes famous works like the Arthurian romances and the Tristan and Isolde legend.
Step-by-step explanation:
The type of medieval literature that tells highly imaginative stories of the adventures and loves of the knights is called romance literature. It was a popular genre during the Middle Ages and featured chivalrous knights, heroic quests, and courtly love.
One example of this type of literature is the Arthurian romance, which tells the stories of King Arthur and his knights of the Round Table. These romances often included fantastical elements such as magical creatures, enchanted forests, and epic battles.
Another famous example of romance literature is the Tristan and Isolde legend, which follows the tragic love story of a knight and a beautiful woman.