Prince Harry has revealed the adorable way that his son Archie honours his grandmother, the late Princess Diana - who tragically died in a car crash in 1997. Whilst Harry, 37, and 41 year old Meghan Markle's eldest child Archie is now three years old and attending pre-school in California, where he resides with his parents and younger sister Lilibet, Harry has revealed that one of his first words as a baby was "grandma".