Was Villanovan R1b even R1b-M269? I don't really remember, but I don't think so. In my opinion there isn't necessarily a continuous genetic relationship between Villanovan people in northern Italy and R1b-U152 heavy Italian regions nowadays. The R1b subclades of Villanovan, Iron Gates and other European hunter gatherers may simply have gone the same way of C1a2 and other Paleolithic haplogroups, i.e. extremely low and dispersed presence. I suppose that subclades of R1b-M269 proper would've arrived from further east, near the Ukraine (Carpathians? Black Sea coast?).