How about Lochinvar? "Marmion", a book by Walter Scott was popular during the early 1800s (pub. editions 1808-1825) and the story of Lochinvar was widely published in anthologies, and learned as a recitation piece. It had something to do with chivalry and featured Lochinvar riding away with some damsel.
It's the closest that I can find to "Loscnazr".