Daniel Neeson is paying tribute to his late mother, Natasha Richardson, more than a decade after her passing.

Daniel, the son of Liam Neeson with the late actress, posted a heartfelt message on Instagram to mark the 15th death anniversary of Richardson.

"I look forward to reuniting one day but for now, I take solace in knowing you're beside me every step of the way. Hopefully, I'm making you proud," the 27-year-old wrote in his post.

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Daniel also boasted about his mom's margarita-making skills, calling her the "OG margarita mama."

"As a kid, I used to ask her for a sip of hers and she would gently say not till you're older. Little did she know I would one day start my own tequila brand and have way too many margaritas at my fingertips," he added.

The young entrepreneur is the co-founder and president of DNA Spirits LLC and has his own tequila brand, De-Nada Tequila.

He ended his emotional tribute by saying he believes he is still connected to his mother "through love."

"If you're a believer or not in quantum physics, the past, future and present coexist. We're all interconnected here and over there through love. The greatest life force. choose it above all else."

Richardson died in 2009 after sustaining a head injury in a fall while taking up skiing lessons in Montreal, Canada.

The actress started her career in theater, appearing in productions like "The Seagull," "High Society" and "Cabaret," for which she won a Tony Award for Best Actress in a Musical in 1993. She also performed in "Anna Christie" where she met her husband, actor Liam Neeson.

Richardson starred in several movies and TV shows, including "The Parent Trap" with Lindsay Lohan.

She and Liam married in 1994. They share two sons -- Michael and Daniel.