FR 6301 then LL 5506 at Barcelona
Sofia → Barcelona → Seville
Timetable, Barcelona time
23:15FR 6301 from Sofia at the gate
19:45LL 5506 to Seville leaves the gate
20 h 30 apart on the timetable, overnight
LL 5506 leaves 20 h 30 after FR 6301 arrives on the timetable: more than half a day, so not a connection we count.