FR 6974 then LA 5784 at Barcelona
Rome → Barcelona → Seville
Timetable, Barcelona time
22:25FR 6974 from Rome at the gate
14:35LA 5784 to Seville leaves the gate
16 h 10 apart on the timetable, overnight
LA 5784 leaves 16 h 10 after FR 6974 arrives on the timetable: more than half a day, so not a connection we count.