Lord Delaware (also known as "Lord Delamere", "The Long-armed Duke", or "Devonshire's Noble Duel With Lord Danby") is a traditional ballad listed by Thomas Lyle in his Ancient Ballads and Songs. While the author and origins of the song are unknown, Lyle mentions that it has been recognized since the early 17th century. He further speculates that the song is tribute to Sir Thomas De la Mare (circa 1377).[1] It has a Roud index number of 88.