Hall, Mrs. Matthew (1858); The Royal Princesses of England from the Reign of George I; Routledge, London. See p.333: "The Princess Elizabeth, destined in after years to become Landgravine of Hesse-Homburg, was the third daughter of George III and Queen Charlotte... born on the 22nd of May, 1770, beteween eight and nine o'clock A.M."
Hall (1858). See p.336: "On the 17th of June, the young Princess was christened in the great council-chamber by the Archbishop of Canterbury, when she was named Elizabeth."