Charles was awarded the Teddy Roosevelt Award for Exceptional Leadership in Conservation at a gala dinner last night in Washington , DC . Camilla wore a stunning pearl necklace on the final night of their U.S. tour . Earlier yesterday the pair met with President Obama in the Oval Office . Prince Charles last visited the U.S. in 2011 . Obama is the first American president to entertain the Royal , who has visited the U.S. on 23 separate occasions , during his royal career . Today they head to Louisville , Kentucky , where they will see cultural , health and environmental initiatives in the city .
Charles was awarded the Teddy Roosevelt Award for Exceptional Leadership in Conservation at a gala dinner last night in Washington , DC . Camilla wore a stunning pearl necklace on the final night of their U.S. tour . Earlier yesterday the pair met with President Obama in the Oval Office . Prince Charles last visited the U.S. in 2011 . Obama is the sixth American president to entertain the Royal , who has visited the U.S. on 23 separate occasions , during his royal career . Today they head to Louisville , Kentucky , where they will see cultural , health and environmental initiatives in the city .