Although Diana and Meghan had very different childhoods, they did have one thing in common: both attended private all-girls schools. Diana began attending Riddlesworth Hall School, an all-girls boarding school, when she was nine. Meghan, meanwhile, attended Immaculate Heart High School, a Catholic girls school in California. On the morning of Meghan's wedding to Prince Harry, the current Immaculate Heart girls gathered to watch their alumna become royalty!