W4 6018 then FR 9601 at Fiumicino
Barcelona → Rome → Madrid
Timetable, Rome time
11:40W4 6018 from Barcelona at the gate
10:40FR 9601 to Madrid leaves the gate
23 h apart on the timetable, overnight
FR 9601 leaves 23 h after W4 6018 arrives on the timetable: more than half a day, so not a connection we count.