The event which is being supported by Sainsbury's, will see FirstCape have a major presence in all the bars at the Festival, with the brand showcasing its range of full strength and lighter style wines.
In addition, Brand Phoenix will also host the Festival's only wine and Champagne bar. The company's number one selling Champagne brand, Etienne Dumont - which it sells exclusively through Sainsbury's - will be the exclusive Champagne sponsor.
Jo Riordan, spokeswoman for Brand Phoenix, comments: "We are thrilled to be a part of the Jubilee Family Festival. The Jubilee celebrations look set to be one of the biggest occasions of the past few years and as a sell-out event of 50,000 people a day that shop in Sainsbury's, this is an excellent and unmissable opportunity to directly engage with consumers.
"Being the only wine and Champagne on offer at the Festival is great exposure. We also hope to raise awareness of the lighter style market."
Brand Phoenix will also be using the Festival as an opportunity to promote First Cape's sponsorship of the British and Irish Lions Tour 2013. Indeed, there will be an appearance and training session by members of the Lions squad at the event.