William’s written on Instagram: “What an incredible milestone and an amazing legacy.
“Deborah is in our thoughts today, as are all those who loved her. W.”
Mum of two, Dame Deborah, taught at schools in Chertsey and Staines before she was diagnosed with Bowel Cancer in 2016.
She passed away at the age of 40 in 2022 having already raised millions for research into cancer.
