Blackburn, with their first win in five games, kept up their hunt for a European placing at the end of the season with a flattering 4-1 victory in an abrasive clash with near neighbours Bolton.
A home side finally enjoyed all three points for the first time in 13 Premier League clashes between these two founder members of the Football League.
Rovers David Dunn left Ewood Park for Birmingham in 2003 but after four injury prone years returned to his hometown club in January 2007.
Blackburn went in at half time a goal to the good thanks to Benni McCarthy's spot kick controversially awarded by Mark Clattenburg after Gretar Steinsson was adjudged to have tripped David Dunn.
But Bolton deservedly drew level just after the break through former Blackburn player Kevin Davies.
At this stage it was the visitors who looked the most likeliest to score yet Blackburn where handed a lifeline when Gary Cahill clearly hacked down Dunn and McCarthy again converted from 12 yards.
Five minutes later and Rovers had a two goal cushion following Bentley's header.
Blackburn did their goal difference no harm when Morten Gamst Pedersen added a forth on the stroke of full time.
People are telling me there was a bit of doubt over the first penalty, well over the course of the season these things go for and against you," claimed Rovers boss Mark Hughes.
"Overall Bolton can't have any real complaints about the result - we were good value for the win. We played some good stuff, particularly in the first half.
"It's a little bit harsh on Bolton because they did cause us problems but in the end we deserved the win.
"I think everybody saw the sharpness in our play today, certainly in the first half. I thought we were excellent and were good value for the 1-0 lead.
"It was important that we won today, we've got games coming up that we very much fancy our chances in.
"We've had a really positive performance and result, I felt our players made a statement about what they are all about, it is a great win for us, all in all a very good day."