EC 4795 then FR 1206 at Madrid
Nantes → Madrid → Venezia
Timetable, Madrid time
12:10EC 4795 from Nantes at the gate
09:40FR 1206 to Venezia leaves the gate
21 h 30 apart on the timetable, overnight
FR 1206 leaves 21 h 30 after EC 4795 arrives on the timetable: more than half a day, so not a connection we count.