The Queen Mother battled cancer twice in her lifetime. According to her official biography, she was first diagnosed with cancer in 1966, at the age of 66, when she was found to have bowel cancer. In December of the same year, surgeons successfully removed a tumor from her colon. However, the disease resurfaced around 20 years later, in 1984, when a breast tumor was discovered in the then 83-year-old, requiring another operation. Fortunately, this procedure was highly successful, and the Queen Mother was declared "very healthy" by her doctors. Remarkably, she recovered so swiftly that she was able to joyfully celebrate her 84th birthday just a few weeks later. Despite facing the challenges of both cancers, the Queen Mother lived a long and fulfilling life, reaching the remarkable age of 101.