Celebrated in Italian Renaissance works such as Orlando Innamorato and Orlando Furioso, Orlando, or sometimes Ronaldo, was a knight-errant with a sword named Durendal and a horse named Veillantif. The 1855 epic poem by Robert Browning, Childe Roland to the Dark Tower Came was inspired by his tales of chivalry. As a lieutenant of Charlemagne, his great deeds were sung as early as the the eleventh-century in Chanson de Roland.