W4 6013 then FR 572 at Madrid
Rome → Madrid → Porto
Timetable, Madrid time
19:55W4 6013 from Rome at the gate
16:40FR 572 to Porto leaves the gate
20 h 45 apart on the timetable, overnight
FR 572 leaves 20 h 45 after W4 6013 arrives on the timetable: more than half a day, so not a connection we count.