FR 4438 then FR 933 at Fiumicino
Riga → Rome → Cologne
Timetable, Rome time
22:50FR 4438 from Riga at the gate
15:25FR 933 to Cologne leaves the gate
16 h 35 apart on the timetable, overnight
FR 933 leaves 16 h 35 after FR 4438 arrives on the timetable: more than half a day, so not a connection we count.