I just discovered the French also use Lucilien. See this site and go to Lucilien:
http://www.e-prenoms.com/l/lu_b.htm
I think all the names that originated from
Lucilla or Lucilius should be researched better. Ofcourse I know
Lucilla and Lucilius both come from
Lucius, but more in-depth information about these names and the names that were derived from them would be welcome.