A 3-0 victory for Nottingham Forest against Ipswich and 1-0 success for Birmingham at Bristol City made Blackburn's efforts redundant and they drop into League One for the first time in nearly four decades.
This Blackburn Rovers fan is not particularly confident ahead of next season.
Charlie Mulgrew and Danny Guthrie netted first-half goals for Blackburn, who were relegated despite their win.
Blackburn were Premier League champions in 1995, but their fortunes have dived under the ownership of the Indian poultry firm Venky's.
The new manager's change to a back three proved important in Rovers giving themselves a chance of survival, but it was too late for the 1994-95 Premier League winners.
This Nottingham Forest fan commiserates with Blackburn Rovers fans, who have suffered at the hands of their owners.
Tony Mowbray is keen to stay at Blackburn and lead a promotion push from Sky Bet League One next season but admits any decision over his future is down to the club's owners. "We want our Rovers back", the 1,650 demanded after the final whistle here.More news: Popular Telugu TV actor Pradeep Kumar kills self in Hyderabad
"I've said it time and time again since I've arrived, my first game was Burton away and there was a fantastic support".
"I'll have a chat and see what their (Birmingham owners) ambitions are", Redknapp said.
"So it hasn't been an entirely smooth week for us but with one game to go as long as their knocks and niggles aren't going to cause a serious problem then I'm sure we are going to pick from the players that were available last week".
Rafael Benitez-managed Newcastle did what it had to do beating Barnsley 3-0 but it took a howler from Brighton goalkeeper David Stockdale to ensure it returned to the top flight as the champion. Charlie Mulgrew and Danny Guthrie gave Blackburn the ideal start as they found themselves two up inside 16 minutes, but results elsewhere soon began to go against them.
At the other end of the table, Blackburn who travelled to Brentford, were hoping that both relegation rivals Nottingham Forest and Birmingham City did not win.
Rovers started the day occupying the final relegation spot, level with Forest who battled to a 3-0 win over Ipswich Town at the City Ground.