(Charleston, SC) -- A former reality TV star and state treasurer is being sued by his former nanny.
Dawn Ledwell filed suit in Charleston last week against Thomas Ravenel for assault, slander and libel.
She claims Ravenel sexually assaulted her in his home three years ago, and she's also suing Bravo and its parent companies for not taking action against Ravenel.
At the time of the alleged incident, Ravenel was a cast member on Bravo's Southern Charm, but he is no longer on the show.