Jessica Biel At Beverley Mitchell wedding in Ravello

Jessica Biel attends the wedding rehearsal of her former 7th Heaven costar, Beverley Mitchell in Italy (September 30, 2008)

Jessica Biel, at Beverley Mitchell wedding in Ravello, Italy, October 1

7th Heaven star Beverley Mitchell married accountant Michael Cameron on Wednesday, her publicist Nicki Fioravante confirms exclusively to PEOPLE.

The couple were married in Ravello, Italy. Mitchell, 27, wore a wedding gown by Melissa Sweet while Cameron, 27, wore a tux by Kenneth Cole.
According to sources, among the 100 guests were Mitchell's former costar – and bridesmaid – Jessica Biel and her boyfriend Justin Timberlake. 7th Heaven's Mackenzie Rosman was also in attendance.
Biel, who has been staying at the sumptuous Palazzo Santa Croce, a $2,800-a-night villa in Positano, was spotted attending a rehearsal for the wedding on Tuesday.