(NewsNation) — PGA golfer Jake Knapp’s girlfriend, Makena White, died unexpectedly at the age of 28, according to a social media announcement.

A friend posted on White’s Instagram account announcing that she had died earlier in the week.

“Makena was one of a kind. She had this rare way of making you feel special, and her huge heart was always overflowing with love. To be loved by Makena was a gift; one that came with endless laughter, so much joy, and a healthy sprinkling of chaos as we tried to keep up with her travel schedule,” the post said.

In White’s memory, the post asked people to donate to the Bruyère Brain Health & Memory Clinic or the Griffin Bell Endowment Fund.

White’s mother, Crystal, had started going to the clinic in 2018 and was eventually diagnosed with Alzheimer’s disease.

White and Knapp began dating in August 2023, but did not publicly announce their relationship until February 2024. After that, she was seen publicly supporting Knapp at several events.

White’s last post on Instagram, from August 11, praised Knapp.

“Second season in the books — forever grateful to be on this walk with you, here’s to many many many more!I looooove you sweet boy, you make it so dang easy to be proud,” she wrote.

No information is available on White’s cause of death.