The 43-year-old actress dug deep into her old picture albums to find a photo of her daughter Lily’s first ever day at school.
She shared the old photo alongside one of Lily on the first day of her final year.
”First first day of school/last first day of school,” Beckinsale wrote.
“Love you so much @lily_beckinsale ❤️❤️❤️.”
The actress has previously revealed she has a tendency to reminisce about old times with her daughter.
In May 2016, Beckinsale commemorated her daughter’s 16th birthday by “reenacting” the birth.
“We took pictures of it!” Beckinsale told E! News. “I wasn’t naked, I was actually in a very nice cigarette pant and a high heel.
“Michael [Sheen] took one of my legs and held it up and Lily came from behind and was diving between my legs.”
Beckinsale and Sheen were together for eight years and had one child together - Lily - before splitting in 2003.