What do you think of the name David Lucian?

I love David Lucian, however I feel that David DeVign almost sounds repetitive. What about the name Dawson? It means son (which could also be used as "grandson") of David. And Dawson DeVign has a much better flow than David DeVign. Of course, that then gets rid of the nice flow with Lucian... Maybe Dawson Lucas DeVign, Dawson Lucano DeVign (Lucano is pronounced like Luca with a no at the end) or Dawson Luca DeVign? I know it sounds like a completely different name, but they all have the same meanings...