FR 270 then IB 5152 at Barcelona
Milan → Barcelona → Seville
Timetable, Barcelona time
17:10FR 270 from Milan at the gate
14:35IB 5152 to Seville leaves the gate
21 h 25 apart on the timetable, overnight
IB 5152 leaves 21 h 25 after FR 270 arrives on the timetable: more than half a day, so not a connection we count.