"Happy birthday to the most amazing mum.... Someone who is selfless in everything she does every single day ... We all love you x ♥️ @sandra_beckham49," he shared with his 47million followers.
He also posted a family snap alongside his sister, niece and two sons.
Notably, his wife Victoria Beckham was not present at her mother-in-law's Birthday celebration.
Instead, the former Spice Girl was most recently spotted at an event alongside her parents.
David's sweet dedication to his mum comes just a day after the Football legend met with another important woman – Queen Elizabeth herself.
Wife-in-tow or not, it appears David is in good company!