QR 3663 then FR 6973 at Barcelona
Bologna → Barcelona → Rome
Timetable, Barcelona time
10:05QR 3663 from Bologna at the gatealso LA 5855
05:55FR 6973 to Rome leaves the gate
19 h 50 apart on the timetable, overnight
FR 6973 leaves 19 h 50 after QR 3663 arrives on the timetable: more than half a day, so not a connection we count.