FR 9840 then EW 9603 at Lisbon
Cologne → Lisbon → Düsseldorf
Timetable, Lisbon time
23:30FR 9840 from Cologne at the gate
13:30EW 9603 to Düsseldorf leaves the gate
14 h apart on the timetable, overnight
EW 9603 leaves 14 h after FR 9840 arrives on the timetable: more than half a day, so not a connection we count.