FR 6973 then W4 6155 at Fiumicino
Barcelona → Rome → Bacau
Timetable, Rome time
07:50FR 6973 from Barcelona at the gate
05:40W4 6155 to Bacau leaves the gate
21 h 50 apart on the timetable, overnight
W4 6155 leaves 21 h 50 after FR 6973 arrives on the timetable: more than half a day, so not a connection we count.