Lindsay Lohanis honoring the lateNatasha Richardsonon what would have been her 58th birthday.

In a touching Instagram post on Tuesday, Lohan, 34, shared a still from the duo’s movieThe Parent Trap, in which they costarred as twins Hallie and Annie (Lohan) and Liz (Richardson), the girls' mother.

Thesweet photo showsLiz with her arm around Lohan’s Annie, the two dressed to the nines as they pose on a city street.

“Happy Birthday Angel 🙏#natasharichardson💙,” Lohan wrote in the accompanying caption.

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“It was so sudden,” Micheál, now 25, recalled of his mother’s death in a recent interview withU.K.‘sThe Times. “When it’s unexpected and it’s just a complete freak accident, it really sort of messes with your mind, whether you believe in fate or not. It can send you for a bit of a head spin, and so you just latch on to the tiny little memories, whether it’s her laugh or her energy in the room or her cooking. I do have her films to go back and watch her in, which I’m incredibly grateful for.”

Lindsay Lohan and Natasha Richardson inThe Parent Trap.Mark Tillie/Walt Disney/Kobal/Shutterstock

Lindsay Lohan, Natasha Richardson

Micheál previously told PEOPLE that his favorite movie of Richardson’s isThe Parent Trap"because I just see her so much as that person."

“I’m so lucky too, because she’s passed away, I can still watch her and see how she worked and also it’s a great thing to have,” he added. “AndI do [watch her movies], but there’s still a lot there I need to watch.”

Natasha Richardson.Michael Loccisano/FilmMagic

natasha richardson

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“Natasha had such an elegance and grace, and she was so maternal to me,” recalled Lohan.

Quaid, 67 — who played Liz’s ex-husband, Nick — said thatRichardson was “somebody so givingand so glad to be there and transmitted that joy of being able to do what we do. It just made everything that much better.”

“She would come into the hair-and-makeup trailer and she would literally swoon over talkingabout Liam and her kids, and she would call him, ‘My Liam,’ " said Hendrix, 50, who played the would-be stepmother to Lohan in the movie. “They truly seemed to have it all, which, to me, made what happened even more heartbreaking.”

source: people.com