FR 1815 then FR 9673 at Fiumicino
Porto → Rome → Madrid
Timetable, Rome time
21:10FR 1815 from Porto at the gate
12:35FR 9673 to Madrid leaves the gate
15 h 25 apart on the timetable, overnight
FR 9673 leaves 15 h 25 after FR 1815 arrives on the timetable: more than half a day, so not a connection we count.