EW 754 then FR 4767 at Vienna
Cologne → Vienna → Bologna
Timetable, Vienna time
14:55EW 754 from Cologne at the gate
06:45FR 4767 to Bologna leaves the gate
15 h 50 apart on the timetable, overnight
FR 4767 leaves 15 h 50 after EW 754 arrives on the timetable: more than half a day, so not a connection we count.