In a statement released by Thames Valley Police, they said: “Wife of John and the love of his life.
“Exceptional mother and grandmother.
“Judith’s happiest moments were spent with her three daughters and her seven grandchildren.
“Judith was beautiful and stylish, with boundless dedication and devotion to her family, sharing fun and endless energy with the people around her.
“For these reasons, and so many more, she will be missed.
“Judith committed her entire working life to Marks and Spencers, which she loved.
“She enjoyed travelling the world and in recent years assisted John with his beekeeping.
“Judith’s loss is tragic and devastating.
“She is irreplaceable.”
Judith, from Wales, died at the scene of the M4 crash on Friday.
A man was arrested for careless driving.