Taylor Swift has released her eighth studio album, Folklore (opens in new tab). While we were busy making banana bread (opens in new tab), Swift was working on a great 16-song album. In the music video for "Cardigan," released Friday at midnight, she told fans via the comments section that she intentionally hid an Easter egg in every lyric of "Folklore." Be Nancy Drew (opens in new tab).

We dug in and, swifite, we finally figured out who the "Last Great American Dynasty" is (no, not the Kennedy she dated): it's Rebecca Harkness.

According to the New York Times (opens in new tab), Harkness had quite a life. The socialite was born in 1915 to a wealthy family in St. Louis, Missouri. He attended school in South Carolina and married an advertising photographer, but it didn't work out. There, Rebecca married William Hale Harkness, a big oil tycoon.

The Harknesses shared a huge Watch Hill, Rhode Island mansion with eight kitchens and 21 bathrooms, called the Holiday House. This arrangement eliminated the need for her to see her three children on a regular basis," the Times said. (In 1961, she sponsored the late Robert Joffrey's small ballet company. ) But she was also known for less pleasant things, such as dying her dog green, moving hundreds of thousands of dollars between banks to confuse accountants, and joking about her daughter's attempted suicide. Harkness died of cancer in 1982.

And this is where the T. Swift connection comes in.

So how does this relate to Swift?" she bought her former home in Rhode Island, yes, the house with that bathroom. Swift moved into the holiday home in 2013 for $17.75 million (open in new tab), which caused some drama at the time.

According to the Times, some in the small beach community were worried that Swift would bring too many people (opens in new tab) to the quiet town. And since Swift is so very, very famous, she naturally had to erect a large number of "No Trespassing" signs (opens in new tab) on her property, which the local citizens were not too keen on. Needless to say, Rhode Island Governor Gina Raimondo proposed at the time to tax second homes over $1 million. (Open in new tab) (Didn't actually happen, but still.)

"Taylor Swift would love to hear about the time a body washed up on the beach below her Watch Hill mansion," one of "The Day" (open in new tab)'s at the time of her purchase reporter wrote. 'It was due to a boating accident, not a prank. It's a nice welcome to the neighborhood.

In the song, Swift sings, " They chose a house and called it 'Holiday House.

Swift even mentions Rhode Island, singing: 21]

"Rebecca gave up the Rhode Island set forever / Brought her bitch-packed friends from the city / Filled the pool with champagne and swam with the big boys / Spent all her money on boys and ballet "

.

Harkness had a ballet company. People write their own clues.

And of course, Swift was once known for his lavish parties with his A-list best friends. Who remembers her iconic Fourth of July parties, filled with matching swimsuits, blow-up slides, and American flag cakes?

In the lyrics, Swift directly compares herself to Rebecca and all the criticism the two faced:

"There goes the maddest woman this town has ever seen/ She had a marvelous time ruining everything."

Swift took to Twitter (opens in new tab) this week to explain to fans how she created the album. Influenced by her surroundings, specific images popped into her head, which ultimately led her to write multiple songs. In one of her tweets, she wrote, "I found myself not only writing my own story, but also writing about and from the perspective of people I have never met, people I have known, or people I wish I had never met."

So it all makes sense. One Easter egg down, hundreds to go.