EW 7520 then LL 5480 at Barcelona
Hamburg → Barcelona → Nantes
Timetable, Barcelona time
16:20EW 7520 from Hamburg at the gate
10:15LL 5480 to Nantes leaves the gate
17 h 55 apart on the timetable, overnight
LL 5480 leaves 17 h 55 after EW 7520 arrives on the timetable: more than half a day, so not a connection we count.