EC 7154 then FR 6332 at Barcelona
Milan → Barcelona → Santiago de Compostela
Timetable, Barcelona time
23:15EC 7154 from Milan at the gate
20:10FR 6332 to Santiago de Compostela leaves the gate
20 h 55 apart on the timetable, overnight
FR 6332 leaves 20 h 55 after EC 7154 arrives on the timetable: more than half a day, so not a connection we count.