"6-year-old Diamond Marshall, who was diagnosed with stage 4 cancer last year and lost her mother to the disease when she was 18-months-old, met Kate Middleton in Calgary with help from the Children's Wish Foundation after she wrote this letter: ""Dear Princess Kate. My name is Diamond Ann. I am six. I was named after Princess Diana. My Mommy Memory is in heaven with her. I have cancer. I spend a lot of time at the hospital. I watched you get married from my bed there. You looked pretty.  I…"
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