I always assumed Laelia is pronounced Lay-lee-uh but I could be wrong.
When I said there is only one Ancient Roman 'R' name I meant there was only one 'R' name in the Ancient Roman list this site provides. I'm sorry if I didn't explain that well, but here is a link to the list of Ancient Roman names.
http://www.behindthename.com/nmc/rom-anci.php(I would have used different 'R' names if I had understood what you meant).