The David Brown-trained filly put up a sterling performance against the colts when a close third to American challenger No Nay Never in the Norfolk Stakes at the Royal meeting.
A Sandown winner on her previous start, the daughter of Distorted Humor steps up to six furlongs for the first time.
“She’s a very nice filly. She won at Sandown and we decided to go down the route of the Norfolk and she ran a cracking race,” said Brown.
“I think six furlongs will suit her. She’s always been ready to go six. I think she’s very high class so she has to have a go.
“It will be a competitive event but they will have her to deal with.”
Listed winner Fig Roll, trained by Richard Hannon, has held her own in quality company and was fourth to Lucky Kristale in the Duchess of Cambridge Stakes at Newmarket last time out.
“Fig Roll is only a pony, but she has the heart of a lion, and she won’t let us down in the Princess Margaret,” he told www.richardhannonracing.co.uk.
“She has barely put a foot wrong all season and ran well to finish fourth at Newmarket last time.”
Hannon also saddles Mahlah, who opened her account at Doncaster a month ago.
“Mahlah was a 20-1 chance when she broke her maiden second time out at Doncaster, she had previously shown promise and we knew that she was a good filly, so we have two with a squeak in the opening Group Three,” he said.
Roger Varian is aiming to pick up some black type with Duchess of Cambridge fifth Princess Noor, who will be fitted with blinkers for the first time.
“Princess Noor has improved with every start. She has come on again and I hope she has a decent place chance,” the Newmarket handler told www.varianstable.com.