The Roman Map of Britain Noviomago Regnorum Chichester, Sussex

Nauimago regentium var. Nauimagore gentium (R&C 44) next
Noiomagon Noeomagum (Ptolemy I 15 7)
NoiomagoV Noeomagus (Ptolemy II 3 13) a polis of the Regni
Regno (AI 477₁₀ Iter vii)

Chichester (SU8604)

There remains the possibility that there are two sites named. Regno/Regentium might represent the site of the palace at Fishbourne; and Noviomago, neighboring Chichester.