FR 4500 then FR 1948 at Dublin
Cologne → Dublin → Luxembourg
Timetable, Dublin time
00:15FR 4500 from Cologne at the gate
12:25FR 1948 to Luxembourg leaves the gate
12 h 10 apart on the timetable
FR 1948 leaves 12 h 10 after FR 4500 arrives on the timetable: more than half a day, so not a connection we count.