Danielle Magness-Wellmann's addiction to royal fashion began in 2011, when Prince William announced his engagement to Kate Middleton.
Danielle was instantly captivated by the fairytale romance.
"I started paying attention to Kate Middleton's clothing when they got engaged and fell in love with her style," she tells Woman's Day.
"I think Kate serves as an incredible role model of both substance and style. When she wears something that is accessible to the public it is a chance to own a piece of sartorial history," Danielle said.
"There's no way I can wear a Givenchy ball gown, but some of her clothes are from Reiss, Hobbs and even Zara.
"I keep on top of her wardrobe by looking at the royal calendar and Twitter – within minutes, someone online is able to recognise where an outfit is from and point me in the right direction for purchase.
"But if it's $700 or more, then I will contact a dressmaker who can make a replica for a tenth of the price."
The 41-year-old from the US state of Minnesota has so far spent $42,000 on royal copycat clothing – and she has no plans to stop any time soon.
Danielle, who allocates $1500 of her annual salary as a physician for royal clothing, buys up to 15 "affordable" items of clothing a month.
And it isn't just the 38-year-old Duchess of Cambridge she copies –she also mimics the Duchess of Sussex, Queen Letizia of Spain and other royals around the world.
Danielle says her purchases depend on how busy the women are and where they are.
"The [British] royal family are my favourite fashion icons as I can wear their clothes every day" she says.
"It is quite an addictive hobby. But I can't always keep on top of Kate's looks due to the different time zones, so this may affect how many purchases I make. I always get more compliments when I'm dressed like a royal – not that people know my outfits are inspired by them."
After following royal fashion for years, Danielle even went to London for her honeymoon in 2013.
"I absolutely loved the visit to Buckingham Palace," she says.
"I also visited Whistles, which is a popular store Kate goes to – more so when she was younger."
Unlike many royal fans, Danielle has not taken sides in the ugly family feud between William and Kate and Prince Harry and Meghan, revealing that she also gets inspired by the former American actress.
"I love Meghan Markle's style," she says.
"She is much more laid-back and wears solid colours."
While Kate remains her firm favourite, Danielle says 38-year-old Meghan's less stuffy and more relaxed approach to fashion makes her more accessible – and cheaper to copy as well!
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