EW 602 then FR 1791 at Lisbon
Cologne → Lisbon → Luxembourg
Timetable, Lisbon time
10:00EW 602 from Cologne at the gate
06:45FR 1791 to Luxembourg leaves the gate
20 h 45 apart on the timetable, overnight
FR 1791 leaves 20 h 45 after EW 602 arrives on the timetable: more than half a day, so not a connection we count.