QR 3750 then IB 5938 at Barcelona
Napoli → Barcelona → Marseille
Timetable, Barcelona time
11:50QR 3750 from Napoli at the gatealso IB 5393, LL 5393, VY 6123
07:50IB 5938 to Marseille leaves the gatealso LL 5938, VY 8132
20 h apart on the timetable, overnight
IB 5938 leaves 20 h after QR 3750 arrives on the timetable: more than half a day, so not a connection we count.