FR 3976 then EI 756 at Dublin
Barcelona → Dublin → Seville
Timetable, Dublin time
21:25FR 3976 from Barcelona at the gate
14:10EI 756 to Seville leaves the gate
16 h 45 apart on the timetable, overnight
EI 756 leaves 16 h 45 after FR 3976 arrives on the timetable: more than half a day, so not a connection we count.