Final answer:
Troilus and Criseyde is a Middle English poem by Geoffrey Chaucer written between 1381 and 1386, exploring themes of love and fortune set during the Trojan War.
Step-by-step explanation:
The chivalric romance Troilus and Criseyde was not written in the 10th century or during the times of Ethelwold or Hroswitha, as neither author is associated with this work. The story of Troilus and Criseyde, set during the Trojan War, is actually a Middle English poem by Geoffrey Chaucer that dates to the late 14th century, specifically the period between 1381 and 1386. This narrative poem is considered one of Chaucer's major works and is known for its exploration of love, loss, and fortune, setting the stage for later Shakespearean works. Troilus and Criseyde takes place in ancient Troy and imagines the tragic romance of the titular characters amidst the backdrop of the Trojan War, weaving themes of courtly love with the fates of these characters.