Princess Mary Adelaide of Cambridge was born on January 27, 1833, in London, England. She was the daughter of Prince Adolphus, Duke of Cambridge and Princess Augusta of Cambridge. Mary Adelaide was known for her charitable work and dedication to various social causes throughout her life. In 1866, she married Prince Francis of Teck, and they had three children together. Mary Adelaide became the Duchess of Teck and was a beloved figure in the royal family. She passed away on October 24, 1897, leaving behind a legacy of compassion and service.