FR 9601 then IB 1213 at Madrid
Rome → Madrid → Nice
Timetable, Madrid time
21:20FR 9601 from Rome at the gate
16:15IB 1213 to Nice leaves the gatealso LA 1726, VY 5532, QR 6937, AA 8780
18 h 55 apart on the timetable, overnight
IB 1213 leaves 18 h 55 after FR 9601 arrives on the timetable: more than half a day, so not a connection we count.