Guy Ritchie, read up. The kin of icons will find a handy parenting primer in Vogue's upcoming age issue, as three generations of Presley women strut their genetic blessings. (The money ain't bad either.) LISA MARIE PRESLEY, 36, center, boasts that her daughter RILEY, 15, a model, has survived relatively unscathed the limelight that comes with being Elvis' granddaughter. "She's not a bimbo! She's not one of the Hollywood pretentious kids. She's not shallow," says Lisa Marie of Riley. "There are certain very affected Hollywood-celebrity kids that I never was raised as." And PRISCILLA, 59, is one all-right grandmama too.