Seven clubs have been members of the Premier League for every season since its inception. This group is composed of Arsenal, Aston Villa, Chelsea, Everton, Liverpool, Manchester United, and Tottenham Hotspur. They have never been relegated. (This information is updated till the beginning of the playing season 2008-09)
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.
liverpool
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 Internazionale are the only team in Serie A to never be relegated to Serie B.
Christiano Ronaldo joined Manchester United from Sporting Lisbon , and as Manchester have never been relegated for many years so neither has Ronaldo been relegated.
It is Real Madrid and Barcelona
Everton
The 2014-1015 winners of the Austrian Bundesliga have not yet been named.
East Stirlingshire holds the record for being the most relegated senior team in Scotland, having been relegated 10 times from the Scottish Football League.
The team that won the Austrian Bundesliga in 1994 was The team that won the Austrian Bundesliga in 1993 was FK Austria Vienna..
No team was awarded the Austrian Bundesliga championship in 1945.
The team that won the Austrian Bundesliga in 1965 was LASK.