FR 2437 then IB 427 at Madrid
Rome → Madrid → Barcelona
Timetable, Madrid time
22:45FR 2437 from Rome at the gate
21:40IB 427 to Barcelona leaves the gatealso IB 427S, LA 1530, LL 3027, OB 5008, VY 5091, AT 5339, AY 5575, QR 6927, CZ 7312
22 h 55 apart on the timetable, overnight
IB 427 leaves 22 h 55 after FR 2437 arrives on the timetable: more than half a day, so not a connection we count.