FR 6921 then FR 4084 at Barcelona
Dublin → Barcelona → Warsaw Modlin
Timetable, Barcelona time
21:40FR 6921 from Dublin at the gate
10:30FR 4084 to Warsaw Modlin leaves the gate
12 h 50 apart on the timetable, overnight
FR 4084 leaves 12 h 50 after FR 6921 arrives on the timetable: more than half a day, so not a connection we count.