FR 1644 then SN 2906 at Vienna
Rome → Vienna → Brussels
Timetable, Vienna time
21:30FR 1644 from Rome at the gate
18:15SN 2906 to Brussels leaves the gate
20 h 45 apart on the timetable, overnight
SN 2906 leaves 20 h 45 after FR 1644 arrives on the timetable: more than half a day, so not a connection we count.