So I am currently struggling to find a name for a character. When I had a perfect name for her. Till someone in one of my critiquing group pointed out that some people might associate the name Muirgen with the name Morgan Le Fay from Arthur. So it got me thinking about other names that cannot be used because they are so associated strongly with one character that its difficult to set them apart. Like I can't use the name Holmes or Sherlock, and they could be not used together. Or you can't use the name like Arthur in a fantasy setting without the association of Sir Arthur from the tales.