I believe you're talking about being relegated to Serie B, the second division, as Serie A is the main league, comparable to the Premiersihp or the Bundesliga. Said that, Internazionale Milano (commonly known as Inter) is the only team to have never been relegated from the Serie A to Serie B.
No, Real Madrid have never been relegated from La Liga. In fact Real Madrid C.F. , F.C. Barcelona and Athletic Bilbao are the only teams that have never been relegated.
The club with the longest run in the top flight is Arsenal.They haven't been relegated from the top flight since 1919. Second is Everton & Third is Liverpool. The teams not relegated from the Premiership ever are Man Utd,Liverpool,Everton,Arsenal,Aston Villa & Tottenham.The Premiership has only been im existence since 1992. Inter MIlan in Italy have never been relegated from the top flight.Nantes in France.
4-3 Inter milan
Arsenal have never been relegated from the league in their history.
No, Arsenal have never been relegated from the epl since 1992
Yes
YES
Tottenham have ever been relegated. This happened in 1977 when Keith Burkinshaw took over as manager but he was able to bounce them back to the league.
no
Both Barcelona and Real Madrid have never been relegated.
No They have not been relageted from the Premireship they have been relagated from the premiership.