EW 520 then FR 7351 at Barcelona
Cologne → Barcelona → Vienna
Timetable, Barcelona time
16:50EW 520 from Cologne at the gate
09:15FR 7351 to Vienna leaves the gate
16 h 25 apart on the timetable, overnight
FR 7351 leaves 16 h 25 after EW 520 arrives on the timetable: more than half a day, so not a connection we count.