Moruavr is largely unknown. Tutwal's father is listed elsewhere (Jesus College MS 20: see Other Works) as G6rwa6r (where the Mid-Welsh "6" symbol is pronounced "u" and was sometimes written "u" or "v" (later "w")*: Gurwamur or Guoremor), which might be the same (Moruavr -> Guoraiur -> Guoremor), however he is listed as son of Gadeon (Kadvr?) son of Conan (Kynan) (in addition, the "w" in G6rwa6r may replace "v", ultimately to written in modern Welsh "f": Gwrfawr).