FR 4166 then FR 51 at Vienna
Lisbon → Vienna → Treviso
Timetable, Vienna time
21:00FR 4166 from Lisbon at the gate
13:15FR 51 to Treviso leaves the gate
16 h 15 apart on the timetable, overnight
FR 51 leaves 16 h 15 after FR 4166 arrives on the timetable: more than half a day, so not a connection we count.