Serena, who pockets a cheque for £1.15 milllion ($1.78 million, about N300 Million), is the first woman over 30 to win Wimbledon since Martina Navratilova in 1990 and she needed all the experience gathered over her illustrious career to survive a remarkable revival from Radwanska.
After being completely out-classed for the first set and a half of her maiden Grand Slam final, Radwanska had Serena on the ropes before the sixth seed finally recovered her composure to reclaim the Venus Rosewater Dish in just over two hours on Centre Court.
Williams has now equalled her sister Venus's tally of five titles at the All England Club, but more significantly the 30-year-old's 14th Grand Slam crown is her first at the majors since her last Wimbledon triumph in 2010.
Inspired by the painful memories of her shock French Open first round exit against Virginie Razzano last month and a spell in hospital with a serious illness 18 months ago, Serena has been determined to reestablish her primacy. It is mission accomplished, but only just.
"I can't even describe it. I almost didn't make it a few years ago when I was in hospital. Now I'm here again and I'm so happy," a tearful Serena said.