The Princess of Wales is known for her unrivalled fashion sense, yet in the early years of her relationship with Prince William, Kate was far more care-free, like the time she rocked a tweed mini skirt and knee-grazing boots at Blenheim Palace The Princess of Wales is known for her unrivalled fashion sense, yet in the early years of her relationship with Prince William, Kate was far more care-free, like the time she rocked a tweed mini skirt and knee-grazing boots at Blenheim Palace