QR 137 then FR 6973 at Barcelona
Doha → Barcelona → Rome
Timetable, Barcelona time
07:05QR 137 from Doha at the gate
05:55FR 6973 to Rome leaves the gate
22 h 50 apart on the timetable, overnight
FR 6973 leaves 22 h 50 after QR 137 arrives on the timetable: more than half a day, so not a connection we count.