FR 2437 then BA 469 at Madrid
Rome → Madrid → London Heathrow
Timetable, Madrid time
22:45FR 2437 from Rome at the gate
20:55BA 469 to London Heathrow leaves the gate
22 h 10 apart on the timetable, overnight
BA 469 leaves 22 h 10 after FR 2437 arrives on the timetable: more than half a day, so not a connection we count.