FR 6926 then QR 3602 at Barcelona
Rome → Barcelona → Rome
Timetable, Barcelona time
21:10FR 6926 from Rome at the gate
12:30QR 3602 to Rome leaves the gatealso LL 5340
15 h 20 apart on the timetable, overnight
QR 3602 leaves 15 h 20 after FR 6926 arrives on the timetable: more than half a day, so not a connection we count.