About Princess Marie of Hesse and by Rhine (1874–1878)
Princess Marie of Hesse and by Rhine (Marie Viktoria Feodore Leopoldine; 24 May 1874 – 16 November 1878) was a Hessian and Rhenish princess, a member of the House of Hesse-Darmstadt. She was the youngest child and fifth daughter of Louis IV, Grand Duke of Hesse and by Rhine, and Princess Alice of the United Kingdom. Her mother was the second daughter of Queen Victoria of the United Kingdom. Marie died of diphtheria and was buried with her mother, who died a few weeks later of the same disease. == Infancy == Marie had six older siblings, Victoria, Elizabeth, Irene, Ernest Louis, Frederick, and Alix. She was known as "May" in the family. When she was a baby, her mother remarked in a letter that "little sister Maly" bore a strong resemblance to her dead brother Friedrich ("Frittie") at the same age "with such quick eyes and two deep dimples in her cheeks." A few weeks later, Alice wrote that baby "Maly" had fair skin, light brown hair and deep blue eyes. As she grew older, she smiled frequently and Alice thought that she more strongly resembled her older sister Victoria, with "fair hair, marked eyebrows and speaking eyes". She and her sister Alix, two years older, "made a pretty contrast". Her mother thought her youngest child was "enchanting" and as a toddler the little girl called her mother "my 'weetheart".
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.