Sophie Walker, who was only 17 years old, lost her fight with Wilms

Tumor, a rare and aggressive kidney cancer, seven years ago last night.

Sue, the matriarch of the biggest family in Britain,

was at the forefront of the flood of tributes that were posted online.

The strongest friendship between Sue and Sophie’s mother,

Rebecca, has only grown stronger over time.

Sue (48), who described Sophie as “a kind-hearted,

funny, and brave soul,” shared her heart on Instagram in an emotional post.

“Our hearts are broken, Sophie,” she wrote.

You were the bravest, funniest, and most kind girl

I’ve ever had the honor of knowing.

Your charming smile and contagious laugh will be missed.

Take care of your beautiful family and get some rest, my dear girl. I will always love you.

Sue’s daughter Chloe expressed her sorrow in a heartbreaking message:

“Very heartbreaking. What a brave, amazing girl. Words are absent.

I’m thinking of you all and sending you lots of love and support.

She was also honored by her sister Sophia, who referred to her as

“the most beautiful and courageous girl.” We have broken hearts.