FR 8446 then FR 6974 at Fiumicino
Seville → Rome → Barcelona
Timetable, Rome time
20:10FR 8446 from Seville at the gate
14:35FR 6974 to Barcelona leaves the gate
18 h 25 apart on the timetable, overnight
FR 6974 leaves 18 h 25 after FR 8446 arrives on the timetable: more than half a day, so not a connection we count.