Was in a hurry, but then forgot to go back and change.
Yes, Arse & Emporion were colonies of Massilia, but in a similar way as Taras was a Spartan colony and Syracuse a Corinthian. There were ties between them, but from what Sarcasm found out, that when Carthage & the Etruscans allied to expel the Greeks from Alalia in Corsica (which they did) Arse & Emporion sent no ships to aid Massilia.
So this shows they were most likely independent from Massilia.
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