Phoebe Gates, Bill Gates’ daughter, has officially acknowledged that she is dating Paul McCartney’s grandson, Arthur Donald.

Eight months after generating romance rumors, the 21-year-old referred to Donald as her “boyfriend” when covering her Stanford University graduation for Nylon.

“My boyfriend, Arthur, giving me a lift post-ceremony,” Phoebe captioned a romantic photo of her fiancé carrying her on his back on Friday.

Phoebe, Bill Gates’ daughter, is dating Paul McCartney’s grandson, Arthur Donald.

Phoebe referred to Donald as her “boyfriend” on Friday.

She was documenting her Stanford University graduation for Nylon.

She shared another photo with Donald, commenting that her companion “cleans up nicely.”

The couple initially made headlines in October 2023, when she shared a snapshot of Donald on her Instagram account following a trip to Paris.

She tagged the 25-year-old in her social media post.

The 25-year-old carried Phoebe on his back in one PDA picture.

She gushed that he “clean[s] up nicely.”

Later that month, the couple attended the “Feud: Capote vs. the Swans” premiere.

However, when Phoebe was interviewed by Bustle five months later, she declined to discuss their relationship status.

She is the youngest of Bill and Melinda’s three children, the other two being Jennifer, 28, and Rory, 25.

Phoebe is Bill and Melinda Gates’ youngest child.

She obtained her human biology degree in only three years.

Melinda, 59, gave the commencement speech at her daughter’s ceremony last week — which motivated Phoebe to graduate in three years instead of four.

“I knew I had to make it happen if I could because I wanted to watch my mother deliver this year’s commencement speech as a graduate,” she explained. “I can’t think of a better ending!”

Phoebe obtained her bachelor’s degree in human biology.

The former couple are also the parents of daughter Jennifer and son Rory.

Arthur is the eldest of McCartney’s eight grandchildren.

Donald, the eldest of McCartney’s eight grandkids, is the son of the Beatles’ daughter Mary and her ex-husband, television producer Alistair Donald.

Donald graduated from Yale University in 2021 with a history degree.

Prior to his relationship with Phoebe, he gained attention for allegedly dating Reese Witherspoon and Ryan Phillippe’s daughter, Ava, in 2018.