Kate Middleton and Meghan Markle aren’t the first royals to artfully send subtle messages through their fashion choices. Worn many times by Princess Diana, this infamous Warm & Wonderful sweater was believed to subtly reflect her perceived status in the royal family at the time.

Cowboy boots and trousers don’t look like much, but Diana was perfectly on trend throughout the ’80s and ’90s. And now, with western style making a comeback, the coming season is the perfect time to wear it.

Checkered pattern for autumn? breakthrough.

High-waisted denim and girly flats are a timeless combination, as Diana did for her school run in 1992.

For more convincing reasons why you need a camel coat this fall, check out this elegant look Diana wore in 1982.

Diana can make a casual sweatshirt look chic. When attending a polo match in 1988, the trendsetter paired a British Lung Foundation sweatshirt with a black blazer and his baseball cap, and tucked jeans into his cowboy boots.

Just in case you need another reason to add a trending tennis sweater to your wardrobe this fall.

One of Lady D’s favorite looks in the ’90s was a combination of oversized graphic sweaters, biker shorts, crew socks and chunky dad sneakers. And more than 20 years later, sporty ensembles are still in vogue.

Sure, sweaters and jeans are always classic fall outfits, but the sweater and trousers combination takes your fall look to the next level of chic. Combine a knit over striped trousers.

The ruffled, wide collar was almost synonymous with Princess Diana. She always opted for an oversized neckline, and it’s not hard to see why. Add a touch of pizzazz to a dress with simple embellishments.

A white jumper in contrasting shades, like the one Diana wore in this photo, is very stylish and refreshes the understated look for the breezy season.