 Complete the following phrase:  Mohammad Reza was born along with his twin sister, Ashraf. However, Shams, Mohammad Reza, Ashraf, Ali Reza, and their older half-sister, Fatimeh, were not royalty by birth, as their father did not become Shah until 1925. Nevertheless, Reza Khan was always convinced that his sudden quirk of good fortune had commenced in 1919 with the birth of his son who was dubbed khoshghadam bird of good omen. Like most Iranians at the time, Reza Khan did not have a surname and after the 